All vulnerabilities

Servers and applications

CVE-2026-28386

Issue summary: Applications using AES-CFB128 encryption or decryption on systems with AVX-512 and VAES support can trigger an out-of-bounds read of up to 15 bytes when processing partial cipher blocks. Impact summary: This out-of-bounds 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 page is…

Severity
High 7.5
Published
7 Apr 2026
Last changed
24 Jul 2026
Added to UpHeron
21 Oct 2026
Fixed in
3.6.2
Sources
NVD

Affected software

SoftwareAffected versions
OpenSSLServers and applications · cpe:a:openssl:openssl
  • From 3.6.0 before 3.6.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-28386
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-28386