OpenSSL
331 CVEs tracked. 1 of them are in CISA KEV.
This hub aggregates every CVE we track for OpenSSL, a product in the operating systems space. Use it to gauge the current risk picture and drill into individual advisories.
OpenSSL CVEs per month
| Month | CVEs |
|---|---|
| 2024-10 | 1 |
| 2024-11 | 1 |
| 2024-12 | 0 |
| 2025-01 | 1 |
| 2025-02 | 2 |
| 2025-03 | 0 |
| 2025-04 | 2 |
| 2025-05 | 1 |
| 2025-06 | 0 |
| 2025-07 | 1 |
| 2025-08 | 0 |
| 2025-09 | 5 |
| 2025-10 | 0 |
| 2025-11 | 0 |
| 2025-12 | 0 |
| 2026-01 | 12 |
| 2026-02 | 0 |
| 2026-03 | 1 |
| 2026-04 | 8 |
| 2026-05 | 0 |
| 2026-06 | 18 |
| 2026-07 | 1 |
| 2026-08 | 11 |
| 2026-09 | 0 |
Severity
How the 331 CVEs score on CVSS. Severity is not exploitation: KEV is counted above.
- Critical24
- High109
- Medium173
- Low18
Latest CVEs
The 15 most recently published vulnerabilities affecting OpenSSL.
- CVE-2026-75803AEAD Forgeries with Empty Ciphertext When Using EVP_Cipher()9.1
- CVE-2026-63076Invalid Pointer Dereference in CMP Server via Crafted protectionAlg7.5
- CVE-2026-63075QUIC ACK-only Packet Retention Can Cause Memory Exhaustion7.5
- CVE-2026-63074CMP Indefinite Cache Growth of ExtraCerts5.9
- CVE-2026-63073Untrusted Sender DN Used as Format String in CMP Response Validation9.8
- CVE-2026-63072Heap Buffer Overflow in CMS Key Unwrapping7.5
- CVE-2026-54874Excessive Memory Use Buffering DTLS Records for a Future Epoch7.5
- CVE-2026-18798QUIC Server May Trigger Double Free When Processing INITIAL Packet7.5
- CVE-2026-14457RPK Server Signature Algorithm Selection Can Dereference a Missing Certificate7.5
- CVE-2026-14456Unbounded Memory Growth in QUIC Server Incoming Channel Queue7.5
- CVE-2026-54876Client-Side Memory Leak in OCSP Response Checking7.5
- CVE-2026-45784rust-openssl: Potential out-of-bounds write in `CipherCtxRef::cipher_update_inplace` for AES-KW-PAD ciphers7.1
- CVE-2026-45446Incorrect Tag Processing for Empty Messages in AES-GCM-SIV and AES-SIV modes4.8
- CVE-2026-45447Heap Use-After-Free in the PKCS7_verify() Function8.8
- CVE-2026-45445AES-OCB IV Ignored on EVP_Cipher() Path7.5
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