Medium (5.5) in python pillow. EPSS 0.3% chance of exploitation in the next 30 days. Fixed in pillow 11.3.0.
Pillow is a Python imaging library. In versions 11.2.0 to before 11.3.0, there is a heap buffer overflow when writing a sufficiently large (>64k encoded with default settings) image in the DDS format due to writing into a buffer without checking for available space. This only affects users who save untrusted data as a compressed DDS image. This issue has been patched in version 11.3.0.
Severity
CVSS 3.1
5.5 medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
EPSS
0.3% chance of exploitation in the next 30 days; higher than 24% of CVEs (scores of 2026-10-31)