Red Hat Security Advisory: openssl security, bug fix, and enhancement update
Affects Red Hat openssl security,Source GCVE Database
Mentioned vulnerabilities
Not known to be exploited.
Data as of 29 Oct 2026, 07:42 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 5.5% chance of exploitation in 30 days – higher than 92% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 11 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
Public exploit code: GitHub proofs of concept
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), GitHub proofs of concept, the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
AI-suggested
Red Hat has released updated OpenSSL packages for Red Hat Enterprise Linux Server Extended Life Cycle Support Extension 6 that address these vulnerabilities. Users should apply these official updates as detailed in the Red Hat advisory (https://access.redhat.com/articles/11258) to remediate the issues. No additional mitigation steps are indicated beyond applying the provided patches.
Description
Red Hat has issued a security advisory for OpenSSL addressing two vulnerabilities: a buffer overread in SSL_select_next_proto (CVE-2024-5535) and a heap use-after-free in PKCS7_verify() (CVE-2026-45447). These issues affect OpenSSL as implemented in Red Hat Enterprise Linux Server Extended Life Cycle Support Extension 6. The advisory includes bug fixes and enhancements alongside the security updates.
References
- access.redhat.com/errata/RHSA-2026:66524 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2294581 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2481898 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_66524.json (opens in a new tab)