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...

Important: Red Hat Security Advisory: compat-openssl10 security update

An update for compat-openssl10 is now available for Red Hat Enterprise Linux 8. 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 vulnerabili...

Linux Distros Unpatched Vulnerability : CVE-2026-6678

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Integer underflow in wcPKCS7DecryptOri when handling crafted Other Recipient Info, leading to incorrect length handling during decryption. CVE-2026-6678 Note th...

Linux Distros Unpatched Vulnerability : CVE-2026-7511

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - PKCS7verify signer confusion allows forged signatures, where the signer associated with a signature is not correctly bound, permitting a forged signature to be...

SUSE SLES15 Security Update : openssl-1_1-livepatches (SUSE-SU-2026:2621-1)

The remote SUSE Linux SLES15 host has a package installed that is affected by a vulnerability as referenced in the SUSE- SU-2026:2621-1 advisory. This update for openssl-11-livepatches fixes the following issues - CVE-2026-45447: Heap Use-After-Free in OpenSSL PKCS7verify bsc1266357. Tenable has...

Oracle Linux 8 : openssl (ELSA-2026-50323)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-50323 advisory. - Fix CVE-2026-45447: Heap Use-After-Free in OpenSSL PKCS7verify Resolves: RHEL-180978 - Fix CVE-2024-4741: Use After Free with SSLfreebuffers Resolve...

CVE-2026-6094

Heap buffer overread in wcPKCS7DecodeEnvelopedData when parsing crafted PKCS7 EnvelopedData. This could theoretically be triggered by attacker-supplied data delivered via S/MIME or CMS...

EUVD-2026-39480

Heap buffer overread in wcPKCS7DecodeEnvelopedData when parsing crafted PKCS7 EnvelopedData. This could theoretically be triggered by attacker-supplied data delivered via S/MIME or CMS...

CVE-2026-6094 Heap buffer overread in wc_PKCS7_DecodeEnvelopedData parsing crafted PKCS7 EnvelopedData

Heap buffer overread in wcPKCS7DecodeEnvelopedData when parsing crafted PKCS7 EnvelopedData. This could theoretically be triggered by attacker-supplied data delivered via S/MIME or CMS...

SUSE SLES15 Security Update : openssl-1_1-livepatches (SUSE-SU-2026:2409-1)

The remote SUSE Linux SLES15 host has a package installed that is affected by a vulnerability as referenced in the SUSE- SU-2026:2409-1 advisory. This update for openssl-11-livepatches fixes the following issues - CVE-2026-45447: Heap Use-After-Free in OpenSSL PKCS7verify bsc1266357. Tenable has...

SUSE SLES15 Security Update : openssl-1_1-livepatches (SUSE-SU-2026:2410-1)

The remote SUSE Linux SLES15 host has a package installed that is affected by a vulnerability as referenced in the SUSE- SU-2026:2410-1 advisory. This update for openssl-11-livepatches fixes the following issues - CVE-2026-45447: Heap Use-After-Free in OpenSSL PKCS7verify bsc1266357. Tenable has...

SUSE SLES12 Security Update : openssl-1_0_0 (SUSE-SU-2026:2396-1)

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2396-1 advisory. This update for openssl-100 fixes the following issues - CVE-2026-7383: Possible Heap Buffer Overflow in ASN.1 Multibyte String Conversion...

SUSE SLES15 Security Update : openssl-1_1 (SUSE-SU-2026:2404-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2404-1 advisory. - CVE-2026-45447: Heap Use-After-Free in OpenSSL PKCS7verify bsc1266357. - CVE-2026-42766: Possible NULL Dereference in...

MiracleLinux 8 : openssl-1.1.1k-16.el8_6 (AXSA:2026-792:09)

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-792:09 advisory. openssl: Use After Free with SSLfreebuffers CVE-2024-4741 openssl: Heap Use-After-Free in OpenSSL PKCS7verify CVE-2026-45447 Tenable has extracted th...

openssl security update

1:1.1.1k-16 - Fix CVE-2026-45447: Heap Use-After-Free in OpenSSL PKCS7verify Resolves: RHEL-180978 - Fix CVE-2024-4741: Use After Free with SSLfreebuffers Resolves: RHEL-180983 1:1.1.1k-15 - Fix CVE-2025-69419: Arbitrary code execution due to out-of-bounds write in PKCS12 processing...

RLSA-2026:26275 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: Use After Free with SSLfreebuffers CVE-2024-4741 openssl: Heap Use-After-Free in OpenSSL...

Oracle Linux 8 : openssl (ELSA-2026-26275)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-26275 advisory. - Fix CVE-2026-45447: Heap Use-After-Free in OpenSSL PKCS7verify Resolves: RHEL-180978 Tenable has extracted the preceding description block directly...

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...

RHEL 8 : openssl (RHSA-2026:26275)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:26275 advisory. OpenSSL is a toolkit that implements the Secure Sockets Layer SSL and Transport Layer Security TLS protocols, as well as a full-strength...

ALSA-2026:26275 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: Use After Free with SSLfreebuffers CVE-2024-4741 openssl: Heap Use-After-Free in OpenSSL...