CVE-2023-50979

5.9 mediumEPSS 0.6%

Medium (5.9) in cryptopp crypto\+\+. EPSS 0.6% chance of exploitation in the next 30 days.

Crypto++ (aka cryptopp) through 8.9.0 has a Marvin side channel during decryption with PKCS#1 v1.5 padding.

Severity

5.9 medium

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-10-31)
CWE: CWE-203
Published: 2023-12-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19