Updated 2 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.

1,762exploited flaws on CISA’s list

34added in the last 30 days

344new WordPress flaws this week

390,080entries in the database

131 results · page 2 of 3

Mar 31, 2026An attacker might be able to trigger an out-of-bounds read by sending a crafted DNS response packet, when custom Lua code uses newDNSPacketOverlay to parse DNS CVE-2026-24028 · Other software · PowerDNS · reported by security@open-xchange.comMedium 5.3
An attacker might be able to trigger an out-of-bounds read by sending a crafted DNS response packet, when custom Lua code uses newDNSPacketOverlay to parse DNS packets. The out-of-bounds read might trigger a crash, leading to a denial of service, or access unrelated memory, leading to potential information disclosure.
Product
DNSdist
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record dnsdist.org
Mar 31, 2026When the internal webserver is enabled (default is disabled), an attacker might be able to trick an administrator logged to the dashboard into visiting a maliciCVE-2026-0397 · Other software · PowerDNS · reported by security@open-xchange.comLow 3.1
When the internal webserver is enabled (default is disabled), an attacker might be able to trick an administrator logged to the dashboard into visiting a malicious website and extract information about the running configuration from the dashboard. The root cause of the issue is a misconfiguration of the Cross-Origin Resource Sharing (CORS) policy.
Product
DNSdist
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record dnsdist.org
Mar 31, 2026An attacker might be able to inject HTML content into the internal web dashboard by sending crafted DNS queries to a DNSdist instance where domain-based dynamicCVE-2026-0396 · Other software · PowerDNS · reported by security@open-xchange.comLow 3.1
An attacker might be able to inject HTML content into the internal web dashboard by sending crafted DNS queries to a DNSdist instance where domain-based dynamic rules have been enabled via either DynBlockRulesGroup:setSuffixMatchRule or DynBlockRulesGroup:setSuffixMatchRuleFFI.
Product
DNSdist
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record dnsdist.org
Feb 9, 2026Crafted zones can lead to increased incoming network traffic.CVE-2026-24027 · Other software · PowerDNS · reported by security@open-xchange.comMedium 5.3
Crafted zones can lead to increased incoming network traffic.
Product
Recursor
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record docs.powerdns.com
Feb 9, 2026Crafted zones can lead to increased resource usage and crafted CNAME chains can lead to cache poisoning in Recursor.CVE-2026-0398 · Other software · PowerDNS · reported by security@open-xchange.comMedium 5.3
Crafted zones can lead to increased resource usage and crafted CNAME chains can lead to cache poisoning in Recursor.
Product
Recursor
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record docs.powerdns.com
Feb 9, 2026Crafted delegations or IP fragments can poison cached delegations in Recursor.CVE-2025-59024 · Other software · PowerDNS · reported by security@open-xchange.comMedium 6.5
Crafted delegations or IP fragments can poison cached delegations in Recursor.
Product
Recursor
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record docs.powerdns.com
Feb 9, 2026Crafted delegations or IP fragments can poison cached delegations in Recursor.CVE-2025-59023 · Other software · PowerDNS · reported by security@open-xchange.comHigh 8.2
Crafted delegations or IP fragments can poison cached delegations in Recursor.
Product
Recursor
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record docs.powerdns.com
Dec 9, 2025An attacker can trigger the removal of cached records by sending a NOTIFY query over TCP.CVE-2025-59030 · Other software · PowerDNS · reported by security@open-xchange.comHigh 7.5
An attacker can trigger the removal of cached records by sending a NOTIFY query over TCP.
Product
Recursor
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record docs.powerdns.com
Dec 9, 2025An attacker can trigger an assertion failure by requesting crafted DNS records, waiting for them to be inserted into the records cache, then send a query with qCVE-2025-59029 · Other software · PowerDNS · reported by security@open-xchange.comMedium 5.3
An attacker can trigger an assertion failure by requesting crafted DNS records, waiting for them to be inserted into the records cache, then send a query with qtype set to ANY.
Product
Recursor
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record docs.powerdns.com
Sep 18, 2025In some circumstances, when DNSdist is configured to use the nghttp2 library to process incoming DNS over HTTPS queries, an attacker might be able to cause a deCVE-2025-30187 · Other software · PowerDNS · reported by security@open-xchange.comLow 3.7
In some circumstances, when DNSdist is configured to use the nghttp2 library to process incoming DNS over HTTPS queries, an attacker might be able to cause a denial of service by crafting a DoH exchange that triggers an unbounded I/O read loop, causing an unexpected consumption of CPU resources.
Product
DNSdist
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record dnsdist.org openwall.com
Jul 21, 2025An attacker spoofing answers to ECS enabled requests sent out by the Recursor has a chance of success higher than non-ECS enabled queries.CVE-2025-30192 · Other software · PowerDNS · reported by security@open-xchange.comHigh 7.5
An attacker spoofing answers to ECS enabled requests sent out by the Recursor has a chance of success higher than non-ECS enabled queries. The updated version include various mitigations against spoofing attempts of ECS enabled queries by chaining ECS enabled requests and enforcing stricter validation of the received answers. The most strict mitigation done when the new setting outgoing.edns_subnet_harden (old style name edns-subnet-harden) is enabled.
Product
Recursor
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record docs.powerdns.com
May 20, 2025In some circumstances, when DNSdist is configured to allow an unlimited number of queries on a single, incoming TCP connection from a client, an attacker can caCVE-2025-30193 · Other software · PowerDNS · reported by security@open-xchange.comHigh 7.5
In some circumstances, when DNSdist is configured to allow an unlimited number of queries on a single, incoming TCP connection from a client, an attacker can cause a denial of service by crafting a TCP exchange that triggers an exhaustion of the stack and a crash of DNSdist, causing a denial of service. The remedy is: upgrade to the patched 1.9.10 version. A workaround is to restrict the maximum number of queries on incoming TCP connections to a safe value, like 50, via the setMaxTCPQueriesPerConnection setting. We would like to thank Renaud Allard for bringing this issue to our attention.
Product
DNSdist
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record dnsdist.org
Apr 29, 2025When DNSdist is configured to provide DoH via the nghttp2 provider, an attacker can cause a denial of service by crafting a DoH exchange that triggers an illegaCVE-2025-30194 · Other software · PowerDNS · reported by security@open-xchange.comHigh 7.5
When DNSdist is configured to provide DoH via the nghttp2 provider, an attacker can cause a denial of service by crafting a DoH exchange that triggers an illegal memory access (double-free) and crash of DNSdist, causing a denial of service. The remedy is: upgrade to the patched 1.9.9 version. A workaround is to temporarily switch to the h2o provider until DNSdist has been upgraded to a fixed version. We would like to thank Charles Howes for bringing this issue to our attention.
Product
DNSdist
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record dnsdist.org openwall.com
Apr 7, 2025An attacker can publish a zone containing specific Resource Record Sets.CVE-2025-30195 · Other software · PowerDNS · reported by security@open-xchange.comHigh 7.5
An attacker can publish a zone containing specific Resource Record Sets. Processing and caching results for these sets can lead to an illegal memory accesses and crash of the Recursor, causing a denial of service. The remedy is: upgrade to the patched 5.2.1 version. We would like to thank Volodymyr Ilyin for bringing this issue to our attention.
Product
Recursor
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record docs.powerdns.com openwall.com
Oct 3, 2024An attacker can publish a zone containing specific Resource Record Sets.CVE-2024-25590 · Other software · PowerDNS · reported by security@open-xchange.comHigh 7.5
An attacker can publish a zone containing specific Resource Record Sets. Repeatedly processing and caching results for these sets can lead to a denial of service.
Product
Recursor
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record docs.powerdns.com openwall.com
Jul 26, 2024phpipam 1.6 is vulnerable to Cross Site Scripting (XSS) via /app/admin/powerDNS/record-edit.php.CVE-2024-41357 · Websites & servers · phpipam · reported by MITREHigh 7.1
phpipam 1.6 is vulnerable to Cross Site Scripting (XSS) via /app/admin/powerDNS/record-edit.php.
Product
phpipam
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
May 14, 2024When incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or DNS over TLS backend, an attacker can triggeCVE-2024-25581 · Other software · PowerDNS · reported by security@open-xchange.comHigh 7.5
When incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or DNS over TLS backend, an attacker can trigger an assertion failure in DNSdist by sending a request for a zone transfer (AXFR or IXFR) over DNS over HTTPS, causing the process to stop and thus leading to a Denial of Service. DNS over HTTPS is not enabled by default, and backends are using plain DNS (Do53) by default.
Product
DNSdist
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record openwall.com dnsdist.org
Apr 25, 2024A crafted response from an upstream server the recursor has been configured to forward-recurse to can cause a Denial of Service in the Recursor.CVE-2024-25583 · Other software · PowerDNS · reported by security@open-xchange.comHigh 7.5
A crafted response from an upstream server the recursor has been configured to forward-recurse to can cause a Denial of Service in the Recursor. The default configuration of the Recursor does not use recursive forwarding and is not affected.
Product
Recursor
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record openwall.com doc.powerdns.com
Apr 4, 2023Denial of service vulnerability in PowerDNS Recursor allows authoritative servers to be marked unavailable.This issue affects Recursor: through 4.6.5, through 4CVE-2023-26437 · Other software · PowerDNS · reported by security@open-xchange.comLow 3.4
Denial of service vulnerability in PowerDNS Recursor allows authoritative servers to be marked unavailable.This issue affects Recursor: through 4.6.5, through 4.7.4 , through 4.8.3.
Product
Recursor
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record docs.powerdns.com lists.fedoraproject.org
Jan 21, 2023A remote attacker might be able to cause infinite recursion in PowerDNS Recursor 4.8.0 via a DNS query that retrieves DS records for a misconfigured domain, becCVE-2023-22617 · Other software · Powerdns · reported by MITREHigh 7.5
A remote attacker might be able to cause infinite recursion in PowerDNS Recursor 4.8.0 via a DNS query that retrieves DS records for a misconfigured domain, because QName minimization is used in QM fallback mode. This is fixed in 4.8.1.
Product
Recursor
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record openwall.com docs.powerdns.com
Aug 23, 2022PowerDNS Recursor up to and including 4.5.9, 4.6.2 and 4.7.1, when protobuf logging is enabled, has Improper Cleanup upon a Thrown Exception, leading to a deniaCVE-2022-37428 · Other software · Powerdns · reported by MITREMedium 6.5
PowerDNS Recursor up to and including 4.5.9, 4.6.2 and 4.7.1, when protobuf logging is enabled, has Improper Cleanup upon a Thrown Exception, leading to a denial of service (daemon crash) via a DNS query that leads to an answer with specific properties.
Product
Recursor
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record docs.powerdns.com docs.powerdns.com
Mar 25, 2022In PowerDNS Authoritative Server before 4.4.3, 4.5.x before 4.5.4, and 4.6.x before 4.6.1 and PowerDNS Recursor before 4.4.8, 4.5.x before 4.5.8, and 4.6.x befoCVE-2022-27227 · Other software · Powerdns · reported by MITREHigh 7.5
In PowerDNS Authoritative Server before 4.4.3, 4.5.x before 4.5.4, and 4.6.x before 4.6.1 and PowerDNS Recursor before 4.4.8, 4.5.x before 4.5.8, and 4.6.x before 4.6.1, insufficient validation of an IXFR end condition causes incomplete zone transfers to be handled as successful transfers.
Product
Authoritative Server
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record openwall.com doc.powerdns.com
Jul 30, 2021PowerDNS Authoritative Server 4.5.0 before 4.5.1 allows anybody to crash the process by sending a specific query (QTYPE 65535) that causes an out-of-bounds exceCVE-2021-36754 · Other software · Powerdns · reported by MITREHigh 7.5
PowerDNS Authoritative Server 4.5.0 before 4.5.1 allows anybody to crash the process by sending a specific query (QTYPE 65535) that causes an out-of-bounds exception.
Product
Authoritative Server
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record openwall.com doc.powerdns.com
Oct 16, 2020An issue has been found in PowerDNS Recursor before 4.1.18, 4.2.x before 4.2.5, and 4.3.x before 4.3.5.CVE-2020-25829 · Other software · Powerdns · reported by MITREHigh 7.5
An issue has been found in PowerDNS Recursor before 4.1.18, 4.2.x before 4.2.5, and 4.3.x before 4.3.5. A remote attacker can cause the cached records for a given name to be updated to the Bogus DNSSEC validation state, instead of their actual DNSSEC Secure state, via a DNS ANY query. This results in a denial of service for installation that always validate (dnssec=validate), and for clients requesting validation when on-demand validation is enabled (dnssec=process).
Product
Recursor
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 docs.powerdns.com
Oct 2, 2020An issue was discovered in PowerDNS Authoritative through 4.3.0 when --enable-experimental-gss-tsig is used.CVE-2020-24698 · Other software · Powerdns · reported by MITRECritical 9.8
An issue was discovered in PowerDNS Authoritative through 4.3.0 when --enable-experimental-gss-tsig is used. A remote, unauthenticated attacker might be able to cause a double-free, leading to a crash or possibly arbitrary code execution. by sending crafted queries with a GSS-TSIG signature.
Product
Authoritative
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record doc.powerdns.com doc.powerdns.com
Oct 2, 2020An issue was discovered in PowerDNS Authoritative through 4.3.0 when --enable-experimental-gss-tsig is used.CVE-2020-24697 · Other software · Powerdns · reported by MITREHigh 7.5
An issue was discovered in PowerDNS Authoritative through 4.3.0 when --enable-experimental-gss-tsig is used. A remote, unauthenticated attacker can cause a denial of service by sending crafted queries with a GSS-TSIG signature.
Product
Authoritative
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record doc.powerdns.com doc.powerdns.com
Oct 2, 2020An issue was discovered in PowerDNS Authoritative through 4.3.0 when --enable-experimental-gss-tsig is used.CVE-2020-24696 · Other software · Powerdns · reported by MITREHigh 8.1
An issue was discovered in PowerDNS Authoritative through 4.3.0 when --enable-experimental-gss-tsig is used. A remote, unauthenticated attacker can trigger a race condition leading to a crash, or possibly arbitrary code execution, by sending crafted queries with a GSS-TSIG signature.
Product
Authoritative
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record doc.powerdns.com doc.powerdns.com
Oct 2, 2020An issue has been found in PowerDNS Authoritative Server before 4.3.1 where an authorized user with the ability to insert crafted records into a zone might be aCVE-2020-17482 · Other software · Powerdns · reported by MITREMedium 4.3
An issue has been found in PowerDNS Authoritative Server before 4.3.1 where an authorized user with the ability to insert crafted records into a zone might be able to leak the content of uninitialized memory.
Product
Authoritative
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record doc.powerdns.com github.com
Sep 25, 2020cPanel before 88.0.3, upon an upgrade, establishes predictable PowerDNS API keys (SEC-561).CVE-2020-26107 · Websites & servers · Cpanel · reported by MITREHigh 7.5
cPanel before 88.0.3, upon an upgrade, establishes predictable PowerDNS API keys (SEC-561).
Product
Cpanel
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record docs.cpanel.net docs.cpanel.net
Jul 1, 2020In PowerDNS Recursor versions up to and including 4.3.1, 4.2.2 and 4.1.16, the ACL restricting access to the internal web server is not properly enforced.CVE-2020-14196 · Other software · Powerdns · reported by MITREMedium 5.3
In PowerDNS Recursor versions up to and including 4.3.1, 4.2.2 and 4.1.16, the ACL restricting access to the internal web server is not properly enforced.
Product
Recursor
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
May 19, 2020PowerDNS Recursor from 4.1.0 up to and including 4.3.0 does not sufficiently defend against amplification attacks.CVE-2020-10995 · Other software · Powerdns · reported by MITREHigh 7.5
PowerDNS Recursor from 4.1.0 up to and including 4.3.0 does not sufficiently defend against amplification attacks. An issue in the DNS protocol has been found that allow malicious parties to use recursive DNS services to attack third party authoritative name servers. The attack uses a crafted reply by an authoritative name server to amplify the resulting traffic between the recursive and other authoritative name servers. Both types of service can suffer degraded performance as an effect. This is triggered by random subdomains in the NSDNAME in NS records. PowerDNS Recursor 4.1.16, 4.2.2 and 4.3.1 contain a mitigation to limit the impact of this DNS protocol issue.
Product
Recursor
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 nxnsattack.com
May 19, 2020An issue has been found in PowerDNS Recursor 4.1.0 up to and including 4.3.0.CVE-2020-10030 · Other software · Powerdns · reported by MITREHigh 8.8
An issue has been found in PowerDNS Recursor 4.1.0 up to and including 4.3.0. It allows an attacker (with enough privileges to change the system's hostname) to cause disclosure of uninitialized memory content via a stack-based out-of-bounds read. It only occurs on systems where gethostname() does not have '\0' termination of the returned string if the hostname is larger than the supplied buffer. (Linux systems are not affected because the buffer is always large enough. OpenBSD systems are not affected because the returned hostname always has '\0' termination.) Under some conditions, this issue can lead to the writing of one '\0' byte out-of-bounds on the stack, causing a denial of service or possibly arbitrary code execution.
Product
Recursor
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 doc.powerdns.com
May 19, 2020An issue has been found in PowerDNS Recursor 4.1.0 through 4.3.0 where records in the answer section of a NXDOMAIN response lacking an SOA were not properly valCVE-2020-12244 · Other software · Powerdns · reported by MITREHigh 7.5
An issue has been found in PowerDNS Recursor 4.1.0 through 4.3.0 where records in the answer section of a NXDOMAIN response lacking an SOA were not properly validated in SyncRes::processAnswer, allowing an attacker to bypass DNSSEC validation.
Product
Recursor
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 openwall.com
Mar 17, 2020cPanel before 84.0.20, when PowerDNS is used, allows arbitrary code execution as root via dnsadmin.CVE-2020-10115 · Websites & servers · Cpanel · reported by MITREHigh 7.2
cPanel before 84.0.20, when PowerDNS is used, allows arbitrary code execution as root via dnsadmin. (SEC-537).
Product
Cpanel
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record documentation.cpanel.net documentation.cpanel.net
Jan 15, 2020The DNS packet parsing/generation code in PowerDNS (aka pdns) Authoritative Server 3.4.x before 3.4.6 allows remote attackers to cause a denial of service (crasCVE-2015-5230 · Other software · PowerDNS · reported by Red HatHigh 7.5
The DNS packet parsing/generation code in PowerDNS (aka pdns) Authoritative Server 3.4.x before 3.4.6 allows remote attackers to cause a denial of service (crash) via crafted query packets.
Product
PowerDNS Authoritative Server
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record debian.org securitytracker.com
Nov 22, 2019PowerDNS Authoritative daemon , pdns versions 4.0.x before 4.0.9, 4.1.x before 4.1.11, exiting when encountering a serial between 2^31 and 2^32-1 while trying tCVE-2019-10203 · Other software · Red Hat · reported by Red HatMedium 4.3
PowerDNS Authoritative daemon , pdns versions 4.0.x before 4.0.9, 4.1.x before 4.1.11, exiting when encountering a serial between 2^31 and 2^32-1 while trying to notify a slave leads to DoS.
Product
pdns
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.redhat.com doc.powerdns.com
Jul 30, 2019A Vulnerability has been found in PowerDNS Authoritative Server before versions 4.1.9, 4.0.8 allowing a remote, authorized master server to cause a high CPU loaCVE-2019-10163 · Other software · PowerDNS · reported by Red HatMedium 4.3
A Vulnerability has been found in PowerDNS Authoritative Server before versions 4.1.9, 4.0.8 allowing a remote, authorized master server to cause a high CPU load or even prevent any further updates to any slave zone by sending a large number of NOTIFY messages. Note that only servers configured as slaves are affected by this issue.
Product
pdns
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 30, 2019A vulnerability has been found in PowerDNS Authoritative Server before versions 4.1.10, 4.0.8 allowing an authorized user to cause the server to exit by insertiCVE-2019-10162 · Other software · PowerDNS · reported by Red HatHigh 7.5
A vulnerability has been found in PowerDNS Authoritative Server before versions 4.1.10, 4.0.8 allowing an authorized user to cause the server to exit by inserting a crafted record in a MASTER type zone under their control. The issue is due to the fact that the Authoritative Server will exit when it runs into a parsing error while looking up the NS/A/AAAA records it is about to use for an outgoing notify.
Product
pdns
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
Mar 21, 2019A vulnerability was found in PowerDNS Authoritative Server before 4.0.7 and before 4.1.7.CVE-2019-3871 · Other software · The PowerDNS Project · reported by Red HatMedium 6.5
A vulnerability was found in PowerDNS Authoritative Server before 4.0.7 and before 4.1.7. An insufficient validation of data coming from the user when building a HTTP request from a DNS query in the HTTP Connector of the Remote backend, allowing a remote user to cause a denial of service by making the server connect to an invalid endpoint, or possibly information disclosure by making the server connect to an internal endpoint and somehow extracting meaningful information about the response
Product
pdns
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 openwall.com
Jan 29, 2019An issue has been found in PowerDNS Recursor versions 4.1.x before 4.1.9 where records in the answer section of responses received from authoritative servers wiCVE-2019-3807 · Other software · Power DNS · reported by Red HatLow 3.7
An issue has been found in PowerDNS Recursor versions 4.1.x before 4.1.9 where records in the answer section of responses received from authoritative servers with the AA flag not set were not properly validated, allowing an attacker to bypass DNSSEC validation.
Product
pdns-recursor
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.redhat.com docs.powerdns.com
Jan 29, 2019An issue has been found in PowerDNS Recursor versions after 4.1.3 before 4.1.9 where Lua hooks are not properly applied to queries received over TCP in some speCVE-2019-3806 · Other software · Power DNS · reported by Red HatHigh 8.1
An issue has been found in PowerDNS Recursor versions after 4.1.3 before 4.1.9 where Lua hooks are not properly applied to queries received over TCP in some specific combination of settings, possibly bypassing security policies enforced using Lua.
Product
pdns-recursor
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.redhat.com docs.powerdns.com
Dec 3, 2018An issue has been found in PowerDNS Recursor before version 4.1.8 where a remote attacker sending a DNS query can trigger an out-of-bounds memory read while comCVE-2018-16855 · Other software · [UNKNOWN] · reported by Red HatHigh 7.5
An issue has been found in PowerDNS Recursor before version 4.1.8 where a remote attacker sending a DNS query can trigger an out-of-bounds memory read while computing the hash of the query for a packet cache lookup, possibly leading to a crash.
Product
pdns-recursor
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.redhat.com docs.powerdns.com
Nov 29, 2018PowerDNS Authoritative Server 4.1.0 up to 4.1.4 inclusive and PowerDNS Recursor 4.0.0 up to 4.1.4 inclusive are vulnerable to a packet cache pollution via craftCVE-2018-14626 · Other software · The PowerDNS Project · reported by Red HatMedium 5.3
PowerDNS Authoritative Server 4.1.0 up to 4.1.4 inclusive and PowerDNS Recursor 4.0.0 up to 4.1.4 inclusive are vulnerable to a packet cache pollution via crafted query that can lead to denial of service.
Product
pdns
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.redhat.com doc.powerdns.com
Nov 29, 2018PowerDNS Authoritative Server 3.3.0 up to 4.1.4 excluding 4.1.5 and 4.0.6, and PowerDNS Recursor 3.2 up to 4.1.4 excluding 4.1.5 and 4.0.9, are vulnerable to a CVE-2018-10851 · Other software · The PowerDNS Project · reported by Red HatMedium 5.3
PowerDNS Authoritative Server 3.3.0 up to 4.1.4 excluding 4.1.5 and 4.0.6, and PowerDNS Recursor 3.2 up to 4.1.4 excluding 4.1.5 and 4.0.9, are vulnerable to a memory leak while parsing malformed records that can lead to remote denial of service.
Product
pdns
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.redhat.com doc.powerdns.com
Nov 26, 2018An issue has been found in PowerDNS DNSDist before 1.3.3 allowing a remote attacker to craft a DNS query with trailing data such that the addition of a record bCVE-2018-14663 · Other software · [UNKNOWN] · reported by Red HatMedium 5.9
An issue has been found in PowerDNS DNSDist before 1.3.3 allowing a remote attacker to craft a DNS query with trailing data such that the addition of a record by dnsdist, for example an OPT record when adding EDNS Client Subnet, might result in the trailing data being smuggled to the backend as a valid record while not seen by dnsdist. This is an issue when dnsdist is deployed as a DNS Firewall and used to filter some records that should not be received by the backend. This issue occurs only when either the 'useClientSubnet' or the experimental 'addXPF' parameters are used when declaring a new backend.
Product
dnsdist
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.redhat.com dnsdist.org
Nov 9, 2018An issue has been found in PowerDNS Recursor from 4.0.0 up to and including 4.1.4.CVE-2018-14644 · Other software · [UNKNOWN] · reported by Red HatMedium 5.3
An issue has been found in PowerDNS Recursor from 4.0.0 up to and including 4.1.4. A remote attacker sending a DNS query for a meta-type like OPT can lead to a zone being wrongly cached as failing DNSSEC validation. It only arises if the parent zone is signed, and all the authoritative servers for that parent zone answer with FORMERR to a query for at least one of the meta-types. As a result, subsequent queries from clients requesting DNSSEC validation will be answered with a ServFail.
Product
pdns
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.redhat.com docs.powerdns.com
Nov 1, 2018An issue has been found in PowerDNS Authoritative Server versions up to and including 3.4.10, 4.0.1 allowing an authorized user to crash the server by insertingCVE-2016-2120 · Other software · [UNKNOWN] · reported by Red HatHigh 7.5
An issue has been found in PowerDNS Authoritative Server versions up to and including 3.4.10, 4.0.1 allowing an authorized user to crash the server by inserting a specially crafted record in a zone under their control then sending a DNS query for that record. The issue is due to an integer overflow when checking if the content of the record matches the expected size, allowing an attacker to cause a read past the buffer boundary.
Product
pdns
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.redhat.com debian.org
Sep 11, 2018An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 4.0.4, allowing an attacker in position of man-in-the-middle to alter CVE-2016-7074 · Other software · Open-Xchange · reported by Red HatMedium 5.3
An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 4.0.4, allowing an attacker in position of man-in-the-middle to alter the content of an AXFR because of insufficient validation of TSIG signatures. A missing check that the TSIG record is the last one, leading to the possibility of parsing records that are not covered by the TSIG signature.
Product
pdns
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.redhat.com doc.powerdns.com
Sep 11, 2018An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 4.0.4, allowing an attacker in position of man-in-the-middle to alter CVE-2016-7073 · Other software · Open-Xchange · reported by Red HatMedium 5.3
An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 4.0.4, allowing an attacker in position of man-in-the-middle to alter the content of an AXFR because of insufficient validation of TSIG signatures. A missing check of the TSIG time and fudge values was found in AXFRRetriever, leading to a possible replay attack.
Product
pdns
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.redhat.com doc.powerdns.com
Sep 11, 2018An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 3.7.4 and 4.0.4, allowing a remote, unauthenticated attacker to cause CVE-2016-7068 · Other software · Open-Xchange · reported by Red HatMedium 5.3
An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 3.7.4 and 4.0.4, allowing a remote, unauthenticated attacker to cause an abnormal CPU usage load on the PowerDNS server by sending crafted DNS queries, which might result in a partial denial of service if the system becomes overloaded. This issue is based on the fact that the PowerDNS server parses all records present in a query regardless of whether they are needed or even legitimate. A specially crafted query containing a large number of records can be used to take advantage of that behaviour.
Product
pdns
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.redhat.com doc.powerdns.com

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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