CVE-2026-45446
CVE-2026-45446
Issue summary: The implementations of AES-SIV (RFC 5297) and AES-GCM-SIV (RFC 8452) mishandle the authentication of AAD (Additional Authenticated Data) with an empty ciphertext allowing a forgery of such messages. Impact summary: An attac…
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N.
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-45446?
- CVE-2026-45446 is a medium-severity vulnerability, classified under Missing Cryptographic Step. CVSS score: 4.8/10. Published 2026-06-09.
- How severe is CVE-2026-45446?
- Medium severity. CVSS v3 base score is 4.8 out of 10.