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Servers and applications

CVE-2025-15468

Issue summary: If an application using the SSL_CIPHER_find() function in a QUIC protocol client or server receives an unknown cipher suite from the peer, a NULL dereference occurs. Impact summary: A NULL pointer dereference leads to abnormal termination of the running process causing Denial of Service. Some applications call SSL_CIPHER_find() from the client_hello_cb callback on the cipher ID…

Severity
Medium 5.9
Published
27 Jan 2026
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
3.3.6, 3.4.4, 3.5.5, 3.6.1
Sources
NVD

Affected software

SoftwareAffected versions
OpenSSLServers and applications · cpe:a:openssl:openssl
  • From 3.3.0 before 3.3.6
  • From 3.4.0 before 3.4.4
  • From 3.5.0 before 3.5.5
  • From 3.6.0 before 3.6.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-15468
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-15468