openssl: FFC-DH Peer Validation Uses Attacker-Supplied q

A flaw was found in OpenSSL. A malicious peer can exploit this vulnerability by presenting a specially crafted DHX X9.42 peer key. Due to improper validation of the peer key's subgroup membership, an attacker can recover the victim's private key after a small number of key exchange attempts. This...

openssl: NULL Pointer Dereference in CRMF EncryptedValue Decryption

A flaw was found in OpenSSL. An attacker controlling a Certificate Management Protocol CMP server, or acting as a man-in-the-middle, could craft a malicious CMP response. This response, containing a Certificate Request Message Format CRMF CertRepMessage with a specific malformed EncryptedValue...

openssl: Unbounded Memory Growth in the QUIC PATH_CHALLENGE Handler

A flaw was found in OpenSSL's QUIC PATHCHALLENGE handler. A remote attacker can exploit this vulnerability by flooding a QUIC client or server with specially crafted PATHCHALLENGE frames. This leads to unbounded memory allocation within the local QUIC stack, as the system continuously allocates...

openssl: CMS AuthEnvelopedData Processing May Accept Forged Messages

A flaw was found in OpenSSL's Cryptographic Message Services CMS AuthEnvelopedData processing. An on-path attacker can exploit insufficient input validation on cipher and tag length fields by sending specially crafted CMS messages. This can lead to the forging of messages or bypassing integrity...

openssl: Heap Use-After-Free in OpenSSL PKCS7_verify()

A flaw was found in OpenSSL. When processing a specially crafted PKCS7 or S/MIME Secure/Multipurpose Internet Mail Extensions signed message, a heap use-after-free vulnerability in the PKCS7verify function can be triggered. This occurs if the SignedData digestAlgorithms field is present as an emp...

openssl: Possible NULL Dereference in Password-Based CMS Decryption

A flaw was found in OpenSSL. A remote attacker could exploit a NULL pointer dereference vulnerability in the Cryptographic Message Syntax CMS decryption process by providing a specially crafted password-encrypted CMS message. This occurs because the keyDerivationAlgorithm field, which is optional...

ALSA-2026:25237 Important: openssl security update

OpenSSL is a toolkit that implements the Secure Sockets Layer SSL and Transport Layer Security TLS protocols, as well as a full-strength general-purpose cryptography library. Security Fixes: openssl: OpenSSL: Heap buffer overflow due to signed integer overflow in Unicode output sizing CVE-2026-73...

ALSA-2026:25239 Important: openssl security update

OpenSSL is a toolkit that implements the Secure Sockets Layer SSL and Transport Layer Security TLS protocols, as well as a full-strength general-purpose cryptography library. Security Fixes: openssl: OpenSSL: Heap buffer overflow due to signed integer overflow in Unicode output sizing CVE-2026-73...

RHEL 9 : openssl (RHSA-2026:25239)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:25239 advisory. OpenSSL is a toolkit that implements the Secure Sockets Layer SSL and Transport Layer Security TLS protocols, as well as a full-strength...

AlmaLinux 10 : openssl (ALSA-2026:25237)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:25237 advisory. openssl: OpenSSL: Heap buffer overflow due to signed integer overflow in Unicode output sizing CVE-2026-7383 openssl: OpenSSL: Denial of Service due to...

FreeBSD : FreeBSD -- Multiple vulnerabilities in OpenSSL (a57fe2c1-6476-11f1-958d-bc241121aa0a)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the a57fe2c1-6476-11f1-958d-bc241121aa0a advisory. Multiple issues have been reported as part of this advisory with different issues affecting...

Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS : OpenSSL vulnerabilities (USN-8414-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8414-1 advisory. Frank Buss discovered that OpenSSL had a heap buffer over-read in ASN.1 content parsing. An attacker could possibly use...

Critical Photon OS Security Update - PHSA-2026-4.0-1031

Updates of 'openssl' packages of Photon OS have been released...

RHEL 10 : openssl (RHSA-2026:25237)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:25237 advisory. OpenSSL is a toolkit that implements the Secure Sockets Layer SSL and Transport Layer Security TLS protocols, as well as a full-strength...

FreeBSD : OpenSSL -- Multiple vulnerabilities (259b562f-64ab-11f1-8607-8447094a420f)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 259b562f-64ab-11f1-8607-8447094a420f advisory. The OpenSSL project reports: Eighteen vulnerabilities in OpenSSL library. Highest classificati...

CVE-2026-42771

creationtimestamp| type| source ---|---|--- 2026-06-10 20:00:00+00:00| seen| https://www.hkcert.org/security-bulletin/openssl-multiple-vulnerabilities20260611...

CVE-2026-42767

creationtimestamp| type| source ---|---|--- 2026-06-10 20:00:00+00:00| seen| https://www.hkcert.org/security-bulletin/openssl-multiple-vulnerabilities20260611 2026-06-23 12:01:16+00:00| seen| https://bsky.app/profile/lambdawatchdog.bsky.social/post/3moxe43t3zx2w...

CVE-2026-45446

creationtimestamp| type| source ---|---|--- 2026-06-10 20:00:00+00:00| seen| https://www.hkcert.org/security-bulletin/openssl-multiple-vulnerabilities20260611 2026-06-22 13:30:13+00:00| seen| https://bsky.app/profile/o2cloud.bsky.social/post/3mouym7m4of2l 2026-06-23 12:01:25+00:00| seen|...

CVE-2026-42768

creationtimestamp| type| source ---|---|--- 2026-06-10 20:00:00+00:00| seen| https://www.hkcert.org/security-bulletin/openssl-multiple-vulnerabilities20260611 2026-06-22 13:30:13+00:00| seen| https://bsky.app/profile/o2cloud.bsky.social/post/3mouym7m4of2l 2026-06-23 12:01:19+00:00| seen|...

CVE-2026-42769

creationtimestamp| type| source ---|---|--- 2026-06-10 20:00:00+00:00| seen| https://www.hkcert.org/security-bulletin/openssl-multiple-vulnerabilities20260611 2026-06-23 12:01:21+00:00| seen| https://bsky.app/profile/lambdawatchdog.bsky.social/post/3moxe4abpj72w...