CVE-2018-15560
HIGH 8.7EPSS 1.8%
PyCryptodome before 3.6.6 has an integer overflow in the data_len variable in AESNI.c, related to the AESNI_encrypt and AESNI_decrypt functions, leading to the mishandling of messages shorter than 16 bytes.
- CVSS v4.0 GitHub
- 8.7 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N - CVSS v3.1 NVD
- 7.5 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS v2.0 NVD
- 5.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P - EPSS
- 1.76% chance of exploitation in the next 30 days, 78th percentile
- Published
- 2018-08-20
- Updated
- 2024-08-05
Proof-of-concept exploits (1)
- Legrandin/pycryptodome/issues/1983276★ · 2026-10-19
Security advisories
- https://whitehatck01.blogspot.com/2018/08/integer-overflow-vulnerability-in.html
- advisories/GHSA-hgg3-g7gr-66r7