Updated 5 h ago

Vulnerability database

Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.

1,764exploited flaws on CISA’s list

35added in the last 30 days

456new WordPress flaws this week

390,714entries in the database

1,213 results · page 8 of 25

Jun 9, 2021Improper conditions check in some Intel(R) Thunderbolt(TM) controllers may allow an authenticated user to potentially enable denial of service via local access.CVE-2020-12292 · Other software · Intel · reported by secure@intel.comMedium 5.5
Improper conditions check in some Intel(R) Thunderbolt(TM) controllers may allow an authenticated user to potentially enable denial of service via local access.
Product
Jhl6240 Thunderbolt 3 Firmware
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record intel.com intel.com
Jun 9, 2021Uncontrolled resource consumption in some Intel(R) Thunderbolt(TM) controllers may allow an authenticated user to potentially enable denial of service via localCVE-2020-12291 · Other software · Intel · reported by secure@intel.comMedium 5.5
Uncontrolled resource consumption in some Intel(R) Thunderbolt(TM) controllers may allow an authenticated user to potentially enable denial of service via local access.
Product
Jhl6240 Thunderbolt 3 Firmware
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record intel.com intel.com
Jun 9, 2021Improper access control in some Intel(R) Thunderbolt(TM) controllers may allow an authenticated user to potentially enable denial of service via local access.CVE-2020-12290 · Other software · Intel · reported by secure@intel.comMedium 5.5
Improper access control in some Intel(R) Thunderbolt(TM) controllers may allow an authenticated user to potentially enable denial of service via local access.
Product
Jhl6240 Thunderbolt 3 Firmware
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record intel.com intel.com
Jun 9, 2021Out-of-bounds write in some Intel(R) Thunderbolt(TM) controllers may allow an authenticated user to potentially enable denial of service via local access.CVE-2020-12289 · Other software · Intel · reported by secure@intel.comMedium 5.5
Out-of-bounds write in some Intel(R) Thunderbolt(TM) controllers may allow an authenticated user to potentially enable denial of service via local access.
Product
Jhl6240 Thunderbolt 3 Firmware
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record intel.com intel.com
Jun 9, 2021Protection mechanism failure in some Intel(R) Thunderbolt(TM) controllers may allow an authenticated user to potentially enable denial of service via local acceCVE-2020-12288 · Other software · Intel · reported by secure@intel.comMedium 5.5
Protection mechanism failure in some Intel(R) Thunderbolt(TM) controllers may allow an authenticated user to potentially enable denial of service via local access.
Product
Jhl6240 Thunderbolt 3 Firmware
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record intel.com intel.com
Dec 8, 2020When reading SMTP server status codes, Thunderbird writes an integer value to a position on the stack that is intended to contain just one byte.CVE-2020-26970 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 8.8
When reading SMTP server status codes, Thunderbird writes an integer value to a position on the stack that is intended to contain just one byte. Depending on processor architecture and stack layout, this leads to stack corruption that may be exploitable. This vulnerability affects Thunderbird < 78.5.1.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Nov 12, 2020Protection mechanism failure in some Intel(R) Thunderbolt(TM) DCH drivers for Windows* before version 72 may allow a privileged user to potentially enable inforCVE-2020-12328 · Other software · Intel · reported by secure@intel.comMedium 4.4
Protection mechanism failure in some Intel(R) Thunderbolt(TM) DCH drivers for Windows* before version 72 may allow a privileged user to potentially enable information disclosure via local access.
Product
Thunderbolt DCH Driver
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record intel.com intel.com
Nov 12, 2020Insecure default variable initialization in some Intel(R) Thunderbolt(TM) DCH drivers for Windows* before version 72 may allow a privileged user to potentially CVE-2020-12327 · Other software · Intel · reported by secure@intel.comMedium 4.4
Insecure default variable initialization in some Intel(R) Thunderbolt(TM) DCH drivers for Windows* before version 72 may allow a privileged user to potentially enable information disclosure via local access.
Product
Thunderbolt DCH Driver
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record intel.com intel.com
Nov 12, 2020Improper initialization in some Intel(R) Thunderbolt(TM) DCH drivers for Windows* before version 72 may allow an authenticated user to potentially enable informCVE-2020-12326 · Other software · Intel · reported by secure@intel.comMedium 5.5
Improper initialization in some Intel(R) Thunderbolt(TM) DCH drivers for Windows* before version 72 may allow an authenticated user to potentially enable information disclosure via local access.
Product
Thunderbolt DCH Driver
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record intel.com intel.com
Nov 12, 2020Improper buffer restrictions in some Intel(R) Thunderbolt(TM) DCH drivers for Windows* before version 72 may allow an authenticated user to potentially enable eCVE-2020-12325 · Other software · Intel · reported by secure@intel.comHigh 7.8
Improper buffer restrictions in some Intel(R) Thunderbolt(TM) DCH drivers for Windows* before version 72 may allow an authenticated user to potentially enable escalation of privilege via local access.
Product
Thunderbolt DCH Driver
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record intel.com intel.com
Nov 12, 2020Protection mechanism failure in some Intel(R) Thunderbolt(TM) DCH drivers for Windows* before version 72 may allow an authenticated user to potentially enable eCVE-2020-12324 · Other software · Intel · reported by secure@intel.comHigh 7.8
Protection mechanism failure in some Intel(R) Thunderbolt(TM) DCH drivers for Windows* before version 72 may allow an authenticated user to potentially enable escalation of privilege via local access.
Product
Thunderbolt DCH Driver
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record intel.com intel.com
Oct 8, 2020If an attacker intercepts Thunderbird's initial attempt to perform automatic account setup using the Microsoft Exchange autodiscovery mechanism, and the attackeCVE-2020-15646 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 5.9
If an attacker intercepts Thunderbird's initial attempt to perform automatic account setup using the Microsoft Exchange autodiscovery mechanism, and the attacker sends a crafted response, then Thunderbird sends username and password over https to a server controlled by the attacker. This vulnerability affects Thunderbird < 68.10.0.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Aug 12, 2020Reliance on untrusted inputs in a security decision in some Intel(R) Thunderbolt(TM) controllers may allow unauthenticated user to potentially enable informatioCVE-2019-14630 · Other software · Intel · reported by secure@intel.comMedium 4.6
Reliance on untrusted inputs in a security decision in some Intel(R) Thunderbolt(TM) controllers may allow unauthenticated user to potentially enable information disclosure via physical access.
Product
Dsl3310 Thunderbolt Firmware
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record intel.com intel.com
Aug 10, 2020Using object or embed tags, it was possible to frame other websites, even if they disallowed framing using the X-Frame-Options header.CVE-2020-15648 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 6.5
Using object or embed tags, it was possible to frame other websites, even if they disallowed framing using the X-Frame-Options header. This vulnerability affects Thunderbird < 78 and Firefox < 78.0.2.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Jul 9, 2020Mozilla developers reported memory safety bugs present in Firefox 76 and Firefox ESR 68.8.CVE-2020-12410 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 8.8
Mozilla developers reported memory safety bugs present in Firefox 76 and Firefox ESR 68.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org usn.ubuntu.com
Jul 9, 2020Mozilla Developer Iain Ireland discovered a missing type check during unboxed objects removal, resulting in a crash.CVE-2020-12406 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 8.8
Mozilla Developer Iain Ireland discovered a missing type check during unboxed objects removal, resulting in a crash. We presume that with enough effort that it could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org usn.ubuntu.com
Jul 9, 2020When browsing a malicious page, a race condition in our SharedWorkerService could occur and lead to a potentially exploitable crash.CVE-2020-12405 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 5.3
When browsing a malicious page, a race condition in our SharedWorkerService could occur and lead to a potentially exploitable crash. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org usn.ubuntu.com
Jul 9, 2020NSS has shown timing differences when performing DSA signatures, which was exploitable and could eventually leak private keys.CVE-2020-12399 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 4.4
NSS has shown timing differences when performing DSA signatures, which was exploitable and could eventually leak private keys. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org lists.debian.org
Jul 9, 2020If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unencrypted conCVE-2020-12398 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 7.5
If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unencrypted connection, causing email data to be sent without protection. This vulnerability affects Thunderbird < 68.9.0.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org usn.ubuntu.com
May 22, 2020By encoding Unicode whitespace characters within the From email header, an attacker can spoof the sender email address that Thunderbird displays.CVE-2020-12397 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 4.3
By encoding Unicode whitespace characters within the From email header, an attacker can spoof the sender email address that Thunderbird displays. This vulnerability affects Thunderbird < 68.8.0.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org security.gentoo.org
Apr 24, 2020Mozilla developers and community members Tyson Smith and Christian Holler reported memory safety bugs present in Firefox 74 and Firefox ESR 68.6.CVE-2020-6825 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgCritical 9.8
Mozilla developers and community members Tyson Smith and Christian Holler reported memory safety bugs present in Firefox 74 and Firefox ESR 68.6. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org usn.ubuntu.com
Apr 24, 2020On 32-bit builds, an out of bounds write could have occurred when processing an image larger than 4 GB in <code>GMPDecodeData</code>.CVE-2020-6822 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 8.8
On 32-bit builds, an out of bounds write could have occurred when processing an image larger than 4 GB in <code>GMPDecodeData</code>. It is possible that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org usn.ubuntu.com
Apr 24, 2020When reading from areas partially or fully outside the source resource with WebGL's <code>copyTexSubImage</code> method, the specification requires the returnedCVE-2020-6821 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 7.5
When reading from areas partially or fully outside the source resource with WebGL's <code>copyTexSubImage</code> method, the specification requires the returned values be zero. Previously, this memory was uninitialized, leading to potentially sensitive data disclosure. This vulnerability affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org usn.ubuntu.com
Apr 24, 2020Mozilla Firefox And Thunderbird Use-After-Free VulnerabilityCVE-2020-6820 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgExploitedHigh 8.1
Mozilla Firefox and Thunderbird contain a race condition vulnerability when handling a ReadableStream under certain conditions. The race condition creates a use-after-free vulnerability, causing unspecified impacts.
Product
Firefox and Thunderbird
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Mozilla’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog bugzilla.mozilla.org usn.ubuntu.com
Apr 24, 2020Mozilla Firefox And Thunderbird Use-After-Free VulnerabilityCVE-2020-6819 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgExploitedHigh 8.1
Mozilla Firefox and Thunderbird contain a race condition vulnerability when running the nsDocShell destructor under certain conditions. The race condition creates a use-after-free vulnerability, causing unspecified impacts.
Product
Firefox and Thunderbird
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Mozilla’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog bugzilla.mozilla.org usn.ubuntu.com
Mar 25, 2020Mozilla developers reported memory safety bugs present in Firefox and Thunderbird 68.5.CVE-2020-6814 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgCritical 9.8
Mozilla developers reported memory safety bugs present in Firefox and Thunderbird 68.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org usn.ubuntu.com
Mar 25, 2020The first time AirPods are connected to an iPhone, they become named after the user's name by default (e.g.CVE-2020-6812 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 5.3
The first time AirPods are connected to an iPhone, they become named after the user's name by default (e.g. Jane Doe's AirPods.) Websites with camera or microphone permission are able to enumerate device names, disclosing the user's name. To resolve this issue, Firefox added a special case that renames devices containing the substring 'AirPods' to simply 'AirPods'. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org usn.ubuntu.com
Mar 25, 2020The 'Copy as cURL' feature of Devtools' network tab did not properly escape the HTTP method of a request, which can be controlled by the website.CVE-2020-6811 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 8.8
The 'Copy as cURL' feature of Devtools' network tab did not properly escape the HTTP method of a request, which can be controlled by the website. If a user used the 'Copy as Curl' feature and pasted the command into a terminal, it could have resulted in command injection and arbitrary command execution. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org usn.ubuntu.com
Mar 25, 2020When a device was changed while a stream was about to be destroyed, the <code>stream-reinit</code> task may have been executed after the stream was destroyed, cCVE-2020-6807 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 8.8
When a device was changed while a stream was about to be destroyed, the <code>stream-reinit</code> task may have been executed after the stream was destroyed, causing a use-after-free and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org usn.ubuntu.com
Mar 25, 2020By carefully crafting promise resolutions, it was possible to cause an out-of-bounds read off the end of an array resized during script execution.CVE-2020-6806 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 8.8
By carefully crafting promise resolutions, it was possible to cause an out-of-bounds read off the end of an array resized during script execution. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record packetstormsecurity.com bugzilla.mozilla.org
Mar 25, 2020When removing data about an origin whose tab was recently closed, a use-after-free could occur in the Quota manager, resulting in a potentially exploitable crasCVE-2020-6805 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 8.8
When removing data about an origin whose tab was recently closed, a use-after-free could occur in the Quota manager, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org usn.ubuntu.com
Mar 2, 2020Mozilla developers and community members reported memory safety bugs present in Firefox 72 and Firefox ESR 68.4.CVE-2020-6800 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 8.8
Mozilla developers and community members reported memory safety bugs present in Firefox 72 and Firefox ESR 68.4. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. In general, these flaws cannot be exploited through email in the Thunderbird product because scripting is disabled when reading mail, but are potentially risks in browser or browser-like contexts. This vulnerability affects Thunderbird < 68.5, Firefox < 73, and Firefox < ESR68.5.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org security.gentoo.org
Mar 2, 2020If a template tag was used in a select tag, the parser could be confused and allow JavaScript parsing and execution when it should not be allowed.CVE-2020-6798 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 6.1
If a template tag was used in a select tag, the parser could be confused and allow JavaScript parsing and execution when it should not be allowed. A site that relied on the browser behaving correctly could suffer a cross-site scripting vulnerability as a result. In general, this flaw cannot be exploited through email in the Thunderbird product because scripting is disabled when reading mail, but is potentially a risk in browser or browser-like contexts. This vulnerability affects Thunderbird < 68.5, Firefox < 73, and Firefox < ESR68.5.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org security.gentoo.org
Mar 2, 2020By downloading a file with the .fileloc extension, a semi-privileged extension could launch an arbitrary application on the user's computer.CVE-2020-6797 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 4.3
By downloading a file with the .fileloc extension, a semi-privileged extension could launch an arbitrary application on the user's computer. The attacker is restricted as they are unable to download non-quarantined files or supply command line arguments to the application, limiting the impact. Note: this issue only occurs on Mac OSX. Other operating systems are unaffected. This vulnerability affects Thunderbird < 68.5, Firefox < 73, and Firefox < ESR68.5.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org security.gentoo.org
Mar 2, 2020When processing a message that contains multiple S/MIME signatures, a bug in the MIME processing code caused a null pointer dereference, leading to an unexploitCVE-2020-6795 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 6.5
When processing a message that contains multiple S/MIME signatures, a bug in the MIME processing code caused a null pointer dereference, leading to an unexploitable crash. This vulnerability affects Thunderbird < 68.5.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org security.gentoo.org
Mar 2, 2020If a user saved passwords before Thunderbird 60 and then later set a master password, an unencrypted copy of these passwords is still accessible.CVE-2020-6794 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 6.5
If a user saved passwords before Thunderbird 60 and then later set a master password, an unencrypted copy of these passwords is still accessible. This is because the older stored password file was not deleted when the data was copied to a new format starting in Thunderbird 60. The new master password is added only on the new file. This could allow the exposure of stored password data outside of user expectations. This vulnerability affects Thunderbird < 68.5.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org security.gentoo.org
Mar 2, 2020When processing an email message with an ill-formed envelope, Thunderbird could read data from a random memory location.CVE-2020-6793 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 6.5
When processing an email message with an ill-formed envelope, Thunderbird could read data from a random memory location. This vulnerability affects Thunderbird < 68.5.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org security.gentoo.org
Mar 2, 2020When deriving an identifier for an email message, uninitialized memory was used in addition to the message contents.CVE-2020-6792 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 4.3
When deriving an identifier for an email message, uninitialized memory was used in addition to the message contents. This vulnerability affects Thunderbird < 68.5.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org security.gentoo.org
Mar 2, 2020Mozilla Firefox And Thunderbird Type Confusion VulnerabilityCVE-2019-17026 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgExploitedHigh 8.8
Mozilla Firefox and Thunderbird contain a type confusion vulnerability due to incorrect alias information in the IonMonkey JIT compiler when setting array elements.
Product
Firefox and Thunderbird
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Mozilla’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com bugzilla.mozilla.org
Jan 8, 2020Mozilla developers reported memory safety bugs present in Firefox 70 and Firefox ESR 68.2.CVE-2019-17012 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 8.8
Mozilla developers reported memory safety bugs present in Firefox 70 and Firefox ESR 68.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record lists.opensuse.org lists.opensuse.org
Jan 8, 2020Under certain conditions, when retrieving a document from a DocShell in the antitracking code, a race condition could cause a use-after-free condition and a potCVE-2019-17011 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 7.5
Under certain conditions, when retrieving a document from a DocShell in the antitracking code, a race condition could cause a use-after-free condition and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record lists.opensuse.org lists.opensuse.org
Jan 8, 2020Under certain conditions, when checking the Resist Fingerprinting preference during device orientation checks, a race condition could have caused a use-after-frCVE-2019-17010 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 7.5
Under certain conditions, when checking the Resist Fingerprinting preference during device orientation checks, a race condition could have caused a use-after-free and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record lists.opensuse.org lists.opensuse.org
Jan 8, 2020When running, the updater service wrote status and log files to an unrestricted location; potentially allowing an unprivileged process to locate and exploit a vCVE-2019-17009 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 7.8
When running, the updater service wrote status and log files to an unrestricted location; potentially allowing an unprivileged process to locate and exploit a vulnerability in file handling in the updater service. *Note: This attack requires local system access and only affects Windows. Other operating systems are not affected.*. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record lists.opensuse.org lists.opensuse.org
Jan 8, 2020When using nested workers, a use-after-free could occur during worker destruction.CVE-2019-17008 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 8.8
When using nested workers, a use-after-free could occur during worker destruction. This resulted in a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record lists.opensuse.org lists.opensuse.org
Jan 8, 2020The plain text serializer used a fixed-size array for the number of <ol> elements it could process; however it was possible to overflow the static-sized array lCVE-2019-17005 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 8.8
The plain text serializer used a fixed-size array for the number of <ol> elements it could process; however it was possible to overflow the static-sized array leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record lists.opensuse.org lists.opensuse.org
Jan 8, 2020When encrypting with a block cipher, if a call to NSC_EncryptUpdate was made with data smaller than the block size, a small out of bounds write could occur.CVE-2019-11745 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 8.8
When encrypting with a block cipher, if a call to NSC_EncryptUpdate was made with data smaller than the block size, a small out of bounds write could occur. This could have caused heap corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record lists.opensuse.org lists.opensuse.org
Dec 3, 2019An exploitable out-of-bounds write vulnerability exists in the igcore19d.dll TIFdecodethunderscan function of Accusoft ImageGear 19.3.0 library.CVE-2019-5083 · Other software · Accusoft · reported by talos-cna@cisco.comHigh 8.8
An exploitable out-of-bounds write vulnerability exists in the igcore19d.dll TIFdecodethunderscan function of Accusoft ImageGear 19.3.0 library. A specially crafted TIFF file can cause an out of bounds write, resulting in a remote code execution. An attacker needs to provide a malformed file to the victim to trigger the vulnerability.
Product
Imagegear
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record talosintelligence.com talosintelligence.com
Sep 27, 2019A crafted S/MIME message consisting of an inner encryption layer and an outer SignedData layer was shown as having a valid digital signature, although the signeCVE-2019-11755 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 7.5
A crafted S/MIME message consisting of an inner encryption layer and an outer SignedData layer was shown as having a valid digital signature, although the signer might have had no access to the contents of the encrypted message, and might have stripped a different signature from the encrypted message. Previous versions had only suppressed showing a digital signature for messages with an outer multipart/signed layer. This vulnerability affects Thunderbird < 68.1.1.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record lists.opensuse.org lists.opensuse.org
Sep 27, 2019Encrypted S/MIME parts in a crafted multipart/alternative message can leak plaintext when included in a a HTML reply/forward.CVE-2019-11739 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 6.5
Encrypted S/MIME parts in a crafted multipart/alternative message can leak plaintext when included in a a HTML reply/forward. This vulnerability affects Thunderbird < 68.1 and Thunderbird < 60.9.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record lists.opensuse.org lists.opensuse.org
Jul 23, 2019A use-after-free vulnerability can occur in the chrome event handler when it is freed while still in use.CVE-2019-9820 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgCritical 9.8
A use-after-free vulnerability can occur in the chrome event handler when it is freed while still in use. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.
Product
Thunderbird
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org

Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.

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