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OpenSSL

345 CVEs tracked. 1 of them are in CISA KEV.

This hub aggregates every CVE we track for OpenSSL, a product in the oss libraries space. Use it to gauge the current risk picture and drill into individual advisories.

OpenSSL CVEs per month

Nov 2024 to Oct 2026. Point at a month, or focus the strip and use the arrow keys.
OpenSSL CVEs per month
MonthCVEs
2024-111
2024-120
2025-011
2025-022
2025-030
2025-042
2025-051
2025-060
2025-071
2025-080
2025-095
2025-100
2025-110
2025-120
2026-0112
2026-020
2026-031
2026-048
2026-050
2026-0618
2026-071
2026-0811
2026-0914
2026-100

Severity

How the 345 CVEs score on CVSS. Severity is not exploitation: KEV is counted above.

  • Critical247%
  • High11434%
  • Medium17853%
  • Low227%

Latest CVEs

The 15 most recently published vulnerabilities affecting OpenSSL.

  1. CVE-2026-84784QUIC: Unbounded RETIRE_CONNECTION_ID Backlog7.5
  2. CVE-2026-84783Use-After-Free in X.509 Extension Cache Under Concurrent Use7.5
  3. CVE-2026-84782DTLS Retransmits Handshake Messages From a Stale Buffer Offset8.2
  4. CVE-2026-77696Timing Side-Channel in SM2 Signature Generation3.7
  5. CVE-2026-75806Unauthenticated and Undersized DTLS 1.2 AEAD Record Causes DoS5.3
  6. CVE-2026-75805NULL Pointer Dereference in CMP Client Revocation Response Handling5.3
  7. CVE-2026-75804QUIC Connection-Level Flow Control is Not Enforced for Streams5.3
  8. CVE-2026-72897Out-of-Bounds Access After SSL_set_SSL_CTX() During a Handshake7.5
  9. CVE-2026-54875Non-Constant-Time SM2 Scalar Multiplication on ARM64 and RISC-V3.7
  10. CVE-2026-54873QUIC STREAM Fragment Metadata DoS7.5
  11. CVE-2026-54872Timing Side-Channel in Scalar Multiplication for Non-NIST EC Curves3.7
  12. CVE-2026-42772Potential CPU DoS via O(n^2) Fragment Reassembly in QUIC5.3
  13. CVE-2026-35191QUIC Unvalidated Amplification Credit may be Over Accounted3.7
  14. CVE-2026-35189Excessive Memory Allocation in Relative CRLDP Processing5.3
  15. CVE-2026-75803AEAD Forgeries with Empty Ciphertext When Using EVP_Cipher()9.1

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