H2O
27 CVEs tracked since 2023. Since Nov 2023, none of them reached CISA KEV.
H2O CVEs per month
| Month | CVEs | In CISA KEV |
|---|---|---|
| 2023-11 | 4 | 0 |
| 2023-12 | null or fewer | |
| 2024-01 | null or fewer | |
| 2024-02 | null or fewer | |
| 2024-03 | null or fewer | |
| 2024-04 | null or fewer | |
| 2024-05 | null or fewer | |
| 2024-06 | null or fewer | |
| 2024-07 | null or fewer | |
| 2024-08 | null or fewer | |
| 2024-09 | null or fewer | |
| 2024-10 | 5 | 0 |
| 2024-11 | null or fewer | |
| 2024-12 | null or fewer | |
| 2025-01 | null or fewer | |
| 2025-02 | null or fewer | |
| 2025-03 | 10 | 0 |
| 2025-04 | null or fewer | |
| 2025-05 | null or fewer | |
| 2025-06 | null or fewer | |
| 2025-07 | null or fewer | |
| 2025-08 | null or fewer | |
| 2025-09 | null or fewer | |
| 2025-10 | null or fewer | |
| 2025-11 | null or fewer | |
| 2025-12 | null or fewer | |
| 2026-01 | null or fewer | |
| 2026-02 | null or fewer | |
| 2026-03 | null or fewer | |
| 2026-04 | null or fewer | |
| 2026-05 | null or fewer | |
| 2026-06 | null or fewer | |
| 2026-07 | 8 | 0 |
Products
The products that kept showing up in H2O's monthly top three, with their CVEs summed over those months.
Latest CVEs
The 15 most recently published vulnerabilities affecting H2O.
- CVE-2026-45271picotls has infinite recursion in the minicrypto ASN.1 decoder5.5
- CVE-2026-54340h2o has HTTP/2 state amplification7.5
- CVE-2026-44453h2o is vulnerable to musl libc stack overflow7.5
- CVE-2026-44452h2o is vulnerable to heap overrun5.9
- CVE-2026-44436Quicly is vulnerable to connection state corruption7.5
- CVE-2026-44435Quicly: Remote Denial of Service via assertion failure when CRYPTO stream handshake data exceeds 32KB7.5
- CVE-2026-44434Quicly is vulnerable to stateless reset injection5.3
- CVE-2026-44433Quicly is vulnerable to memory exhaustion5.3
- CVE-2026-55213h2o: musl libc stack overflow (QPACK)7.5
- CVE-2026-8752h2oai h2o-3 Rapids setproperty Primitive AstSetProperty.java exec access control5.3
- CVE-2026-8751h2oai h2o-3 JAR Model.java importBinaryModel deserialization7.3
- CVE-2026-8750h2oai h2o-3 ImportFile API PersistNFS.java importFiles information disclosure5.3
- CVE-2026-3960Remote Code Execution in h2oai/h2o-39.8
- CVE-2025-61684Quicly has assertion failures7.5
- CVE-2025-10769h2oai h2o-3 H2 JDBC Driver ImportSQLTable deserialization6.3
The record
- Peak rank
- #102 in Mar 2025
- Busiest month shown
- Mar 2025, 10 CVEs
- Months with a KEV entry
- 0 since Nov 2023
- Monthly snapshots
- 4 since 2023