Critical security advisoryCriticalFlagged by our vulnerability database: PHP2Shell is on CISA’s exploited list. Most WordPress hosting runs PHP. See if your site is affectedFlagged by our vulnerability database: PHP2Shell is being exploited. DetailsExploited: PHP2Shell. Check your site
HuttenlocherTechnologies
Updated 12 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
343new WordPress flaws this week
390,080entries in the database

26 results

  • Dec 21, 2023Matrix SSL 4.x through 4.6.0 and Rambus TLS Toolkit have a length-subtraction integer overflow for Client Hello Pre-Shared Key extension parsing in the TLS 1.3 CVE-2023-24609 · Other software · Matrixssl · reported by MITREHigh 7.5

    Matrix SSL 4.x through 4.6.0 and Rambus TLS Toolkit have a length-subtraction integer overflow for Client Hello Pre-Shared Key extension parsing in the TLS 1.3 server. An attacked device calculates an SHA-2 hash over at least 65 KB (in RAM). With a large number of crafted TLS messages, the CPU becomes heavily loaded. This occurs in tls13VerifyBinder and tls13TranscriptHashUpdate.

    Product
    Matrixssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 18, 2023An issue in MatrixSSL 4.5.1-open and earlier leads to failure to securely check the SessionID field, resulting in the misuse of an all-zero MasterSecret that caCVE-2022-46505 · Other software · Matrixssl · reported by MITREHigh 7.5

    An issue in MatrixSSL 4.5.1-open and earlier leads to failure to securely check the SessionID field, resulting in the misuse of an all-zero MasterSecret that can decrypt secret data.

    Product
    Matrixssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 9, 2023MatrixSSL 4.0.4 through 4.5.1 has an integer overflow in matrixSslDecodeTls13.CVE-2022-43974 · Other software · Matrixssl · reported by MITREHigh 8.1

    MatrixSSL 4.0.4 through 4.5.1 has an integer overflow in matrixSslDecodeTls13. A remote attacker might be able to send a crafted TLS Message to cause a buffer overflow and achieve remote code execution. This is fixed in 4.6.0.

    Product
    Matrixssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 30, 2020In MatrixSSL before 4.2.2 Open, the DTLS server can encounter an invalid pointer free (leading to memory corruption and a daemon crash) via a crafted incoming nCVE-2019-16747 · Other software · Matrixssl · reported by MITREHigh 7.5

    In MatrixSSL before 4.2.2 Open, the DTLS server can encounter an invalid pointer free (leading to memory corruption and a daemon crash) via a crafted incoming network message, a different vulnerability than CVE-2019-14431.

    Product
    Matrixssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 3, 2019MatrixSSL 4.2.1 and earlier contains a timing side channel in ECDSA signature generation.CVE-2019-13629 · Other software · Matrixssl · reported by MITREMedium 5.9

    MatrixSSL 4.2.1 and earlier contains a timing side channel in ECDSA signature generation. This allows a local or a remote attacker, able to measure the duration of hundreds to thousands of signing operations, to compute the private key used. The issue occurs because crypto/pubkey/ecc_math.c scalar multiplication leaks the bit length of the scalar.

    Product
    Matrixssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 29, 2019In MatrixSSL 3.8.3 Open through 4.2.1 Open, the DTLS server mishandles incoming network messages leading to a heap-based buffer overflow of up to 256 bytes and CVE-2019-14431 · Other software · Matrixssl · reported by MITRECritical 9.8

    In MatrixSSL 3.8.3 Open through 4.2.1 Open, the DTLS server mishandles incoming network messages leading to a heap-based buffer overflow of up to 256 bytes and possible Remote Code Execution in parseSSLHandshake in sslDecode.c. During processing of a crafted packet, the server mishandles the fragment length value provided in the DTLS message.

    Product
    Matrixssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 9, 2019MatrixSSL before 4.2.1 has an out-of-bounds read during ASN.1 handling.CVE-2019-13470 · Other software · Matrixssl · reported by MITRECritical 9.8

    MatrixSSL before 4.2.1 has an out-of-bounds read during ASN.1 handling.

    Product
    Matrixssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 8, 2019pubRsaDecryptSignedElementExt in MatrixSSL 4.0.1 Open, as used in Inside Secure TLS Toolkit, has a stack-based buffer overflow during X.509 certificate verificaCVE-2019-10914 · Other software · Matrixssl · reported by MITRECritical 9.8

    pubRsaDecryptSignedElementExt in MatrixSSL 4.0.1 Open, as used in Inside Secure TLS Toolkit, has a stack-based buffer overflow during X.509 certificate verification because of missing validation in psRsaDecryptPubExt in crypto/pubkey/rsa_pub.c.

    Product
    Matrixssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 14, 2018MatrixSSL through 3.9.5 Open allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP.CVE-2018-12439 · Other software · Matrixssl · reported by MITREMedium 4.7

    MatrixSSL through 3.9.5 Open allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.

    Product
    Matrixssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 22, 2018MatrixSSL version 3.7.2 adopts a collision-prone OID comparison logic resulting in possible spoofing of OIDs (e.g.CVE-2017-1000417 · Other software · Matrixssl · reported by MITREMedium 5.3

    MatrixSSL version 3.7.2 adopts a collision-prone OID comparison logic resulting in possible spoofing of OIDs (e.g. in ExtKeyUsage extension) on X.509 certificates.

    Product
    Matrixssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 9, 2018MatrixSSL version 3.7.2 has an incorrect UTCTime date range validation in its X.509 certificate validation process resulting in some certificates have their expCVE-2017-1000415 · Other software · Matrixssl · reported by MITREMedium 5.9

    MatrixSSL version 3.7.2 has an incorrect UTCTime date range validation in its X.509 certificate validation process resulting in some certificates have their expiration (beginning) year extended (delayed) by 100 years.

    Product
    Matrixssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 22, 2017An integer overflow vulnerability exists in the X509 certificate parsing functionality of InsideSecure MatrixSSL 3.8.7b.CVE-2017-2782 · Other software · Matrixssl · reported by talos-cna@cisco.comMedium 6.5

    An integer overflow vulnerability exists in the X509 certificate parsing functionality of InsideSecure MatrixSSL 3.8.7b. A specially crafted x509 certificate can cause a length counter to overflow, leading to a controlled out of bounds copy operation. To trigger this vulnerability, a specially crafted x509 certificate must be presented to the vulnerable client or server application when initiating secure connection

    Product
    Matrixssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 22, 2017An exploitable heap buffer overflow vulnerability exists in the X509 certificate parsing functionality of InsideSecure MatrixSSL 3.8.7b.CVE-2017-2781 · Other software · Inside Secure · reported by talos-cna@cisco.comCritical 9.8

    An exploitable heap buffer overflow vulnerability exists in the X509 certificate parsing functionality of InsideSecure MatrixSSL 3.8.7b. A specially crafted x509 certificate can cause a buffer overflow on the heap resulting in remote code execution. To trigger this vulnerability, a specially crafted x509 certificate must be presented to the vulnerable client or server application when initiating secure connection.

    Product
    MatrixSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 22, 2017An exploitable heap buffer overflow vulnerability exists in the X509 certificate parsing functionality of InsideSecure MatrixSSL 3.8.7b.CVE-2017-2780 · Other software · Inside Secure · reported by talos-cna@cisco.comCritical 9.8

    An exploitable heap buffer overflow vulnerability exists in the X509 certificate parsing functionality of InsideSecure MatrixSSL 3.8.7b. A specially crafted x509 certificate can cause a buffer overflow on the heap resulting in remote code execution. To trigger this vulnerability, a specially crafted x509 certificate must be presented to the vulnerable client or server application when initiating secure connection.

    Product
    MatrixSSL
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 3, 2017TLS cipher suites with CBC mode in TLS 1.1 and 1.2 in MatrixSSL before 3.8.3 allow remote attackers to cause a denial of service (out-of-bounds read) via a crafCVE-2016-6884 · Other software · Matrixssl · reported by MITREMedium 6.5

    TLS cipher suites with CBC mode in TLS 1.1 and 1.2 in MatrixSSL before 3.8.3 allow remote attackers to cause a denial of service (out-of-bounds read) via a crafted message.

    Product
    Matrixssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 3, 2017MatrixSSL before 3.8.3 configured with RSA Cipher Suites allows remote attackers to obtain sensitive information via a Bleichenbacher variant attack.CVE-2016-6883 · Other software · Matrixssl · reported by MITREMedium 5.9

    MatrixSSL before 3.8.3 configured with RSA Cipher Suites allows remote attackers to obtain sensitive information via a Bleichenbacher variant attack.

    Product
    Matrixssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 3, 2017MatrixSSL before 3.8.7, when the DHE_RSA based cipher suite is supported, makes it easier for remote attackers to obtain RSA private key information by conductiCVE-2016-6882 · Other software · Matrixssl · reported by MITREMedium 5.9

    MatrixSSL before 3.8.7, when the DHE_RSA based cipher suite is supported, makes it easier for remote attackers to obtain RSA private key information by conducting a Lenstra side-channel attack.

    Product
    Matrixssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 13, 2017The pstm_exptmod function in MatrixSSL 3.8.6 and earlier does not properly perform modular exponentiation, which might allow remote attackers to predict the secCVE-2016-8671 · Other software · Matrixssl · reported by MITREMedium 5.9

    The pstm_exptmod function in MatrixSSL 3.8.6 and earlier does not properly perform modular exponentiation, which might allow remote attackers to predict the secret key via unspecified vectors. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-6887.

    Product
    Matrixssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 13, 2017The pstm_exptmod function in MatrixSSL 3.8.6 and earlier does not properly perform modular exponentiation, which might allow remote attackers to predict the secCVE-2016-6887 · Other software · Matrixssl · reported by MITREMedium 5.9

    The pstm_exptmod function in MatrixSSL 3.8.6 and earlier does not properly perform modular exponentiation, which might allow remote attackers to predict the secret key via a CRT attack.

    Product
    Matrixssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 13, 2017The pstm_reverse function in MatrixSSL before 3.8.4 allows remote attackers to cause a denial of service (invalid memory read and crash) via a (1) zero value orCVE-2016-6886 · Other software · Matrixssl · reported by MITREHigh 7.5

    The pstm_reverse function in MatrixSSL before 3.8.4 allows remote attackers to cause a denial of service (invalid memory read and crash) via a (1) zero value or (2) the key's modulus for the secret key during RSA key exchange.

    Product
    Matrixssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 13, 2017The pstm_exptmod function in MatrixSSL before 3.8.4 allows remote attackers to cause a denial of service (invalid free and crash) via a base zero value for the CVE-2016-6885 · Other software · Matrixssl · reported by MITREHigh 7.5

    The pstm_exptmod function in MatrixSSL before 3.8.4 allows remote attackers to cause a denial of service (invalid free and crash) via a base zero value for the modular exponentiation.

    Product
    Matrixssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 5, 2017The x509FreeExtensions function in MatrixSSL before 3.8.6 allows remote attackers to cause a denial of service (free of unallocated memory) via a crafted X.509 CVE-2016-6892 · Other software · Matrixssl · reported by MITREHigh 7.5

    The x509FreeExtensions function in MatrixSSL before 3.8.6 allows remote attackers to cause a denial of service (free of unallocated memory) via a crafted X.509 certificate.

    Product
    Matrixssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 5, 2017MatrixSSL before 3.8.6 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted ASN.1 Bit Field primitive in an X.509 certificateCVE-2016-6891 · Other software · Matrixssl · reported by MITREHigh 7.5

    MatrixSSL before 3.8.6 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted ASN.1 Bit Field primitive in an X.509 certificate.

    Product
    Matrixssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 5, 2017Heap-based buffer overflow in MatrixSSL before 3.8.6 allows remote attackers to execute arbitrary code via a crafted Subject Alt Name in an X.509 certificate.CVE-2016-6890 · Other software · Matrixssl · reported by MITRECritical 9.8

    Heap-based buffer overflow in MatrixSSL before 3.8.6 allows remote attackers to execute arbitrary code via a crafted Subject Alt Name in an X.509 certificate.

    Product
    Matrixssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 31, 2004PeerSec MatrixSSL before 1.1 does not implement RSA blinding, which allows context-dependent attackers to obtain the server's private key by determining factorsCVE-2004-2682 · Other software · Peersec Networks · reported by MITREMedium 5.8

    PeerSec MatrixSSL before 1.1 does not implement RSA blinding, which allows context-dependent attackers to obtain the server's private key by determining factors using timing differences on (1) the number of extra reductions during Montgomery reduction, and (2) the use of different integer multiplication algorithms ("Karatsuba" and normal), a related issue to CVE-2003-0147.

    Product
    Matrixssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 31, 2004PeerSec MatrixSSL before 1.1 caches session keys for an indefinitely long time, which might make it easier for remote attackers to hijack a session.CVE-2004-2681 · Other software · Peersec Networks · reported by MITREHigh 7.5

    PeerSec MatrixSSL before 1.1 caches session keys for an indefinitely long time, which might make it easier for remote attackers to hijack a session.

    Product
    Matrixssl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.

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.

Weekly security brief

The flaws that hit local websites, every Friday.

One short email: what got exploited this week, which WordPress plugins broke, and what to check. Unsubscribe in one click.

Get in touch

Tell us what you're building.

A website, your marketing, a security check, an app, or the thing you've been running out of a spreadsheet for three years. A few lines is plenty.

01The person who'll do the work writes back
02A short call, then a written plan with the price
03Nothing starts until you say yes
04Hacked or down right now? Call, and we pick up the same day
843-331-6339

Not ready to talk yet? Run the free website check and see what Google sees.

What do you need?
Build
Grow
Protect
Urgent

No newsletter, no sales sequence. Just a reply.