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...

Important: Red Hat Security Advisory: openssl security update

An update for openssl is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from...

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: OpenSSL: Denial of Service due to heap out-of-bounds read in CMS password-based decryption

A flaw was found in OpenSSL. When processing attacker-supplied Cryptographic Message Syntax CMS data using password-based decryption, an attacker can choose a stream-mode Key Encryption Key KEK cipher. This can trigger a heap out-of-bounds read, potentially causing an application crash and leadin...

openssl: OpenSSL: Heap buffer overflow due to signed integer overflow in Unicode output sizing

A flaw was found in OpenSSL. A signed integer overflow vulnerability exists when sizing the destination buffer for Unicode output. This can lead to a heap buffer overflow, which may result in a crash or potentially allow an attacker to execute arbitrary code. Exploitation requires an application ...

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: OpenSSL: Heap buffer over-read in ASN.1 decoding can lead to denial of service or information disclosure.

A flaw was found in OpenSSL. An integer truncation vulnerability in the ASN.1 decoder can occur when processing a crafted DER-encoded ASN.1 structure with a primitive element exceeding 2 gigabytes. A remote attacker could exploit this to cause a heap buffer over-read. This may lead to an...

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...

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...

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...

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...

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

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

Critical Photon OS Security Update - PHSA-2026-5.0-92-0874

Updates of 'openssl', 'libxml2' packages of Photon OS have been released...

Critical Photon OS Security Update - PHSA-2026-5.0-90-0874

Updates of 'gmp', 'openssl', 'libxslt', 'libxml2' 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...

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...

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...

Critical Photon OS Security Update - PHSA-2026-5.0-91-0874

Updates of 'linux', 'openssl', 'libxslt', 'zlib', 'libxml2', 'linux-esx' packages of Photon OS have been released...

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...

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|...