UpHeron
All vulnerabilities

Servers and applications

CVE-2026-9076

Issue summary: When CMS password-based decryption (RFC 3211 / PWRI key unwrap) processes attacker-supplied CMS data, an attacker-chosen stream-mode KEK cipher can trigger a heap out-of-bounds read in kek_unwrap_key(). Impact summary: A heap buffer over-read may trigger a crash which leads to Denial of Service for an application if the input buffer ends at a memory page boundary and the following…

Severity
High 7.5
Published
9 Jun 2026
Last changed
23 Jul 2026
Added to UpHeron
21 Oct 2026
Fixed in
1.0.2zq, 1.1.1zh, 3.0.21, 3.4.6, 3.5.7, 3.6.3
Sources
NVD

Affected software

SoftwareAffected versions
OpenSSLServers and applications · cpe:a:openssl:openssl
  • Version 4.0.0
  • From 3.6.0 before 3.6.3
  • From 3.5.0 before 3.5.7
  • From 3.4.0 before 3.4.6
All 7 release lines
  • From 1.0.2 before 1.0.2zq
  • From 1.1.1 before 1.1.1zh
  • From 3.0.0 before 3.0.21
  • From 3.4.0 before 3.4.6
  • From 3.5.0 before 3.5.7
  • From 3.6.0 before 3.6.3
  • Version 4.0.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-9076
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-9076