Buffer overflow in Python-pillow Pillow
CVE-2025-48379
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 ch…
Vulnerability class: Buffer Overflow
EPSS: 0.001 (27.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.
Affected products
- Python-pillow Pillow — versions >= 11.2.0, < 11.3.0
Weakness classification (CWE)
References
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-xg8h-j46f-w952 (x_refsource_CONFIRM)
- https://github.com/python-pillow/Pillow/pull/9041 (x_refsource_MISC)
- https://github.com/python-pillow/Pillow/commit/ef98b3510e3e4f14b547762764813d7e5ca3c5a4 (x_refsource_MISC)
- https://github.com/python-pillow/Pillow/releases/tag/11.3.0 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-48379?
- CVE-2025-48379 is a high-severity vulnerability in Python-pillow Pillow, classified under Heap-based Buffer Overflow. CVSS score: 7.1/10. Published 2025-07-01.
- How severe is CVE-2025-48379?
- High severity. CVSS v3 base score is 7.1 out of 10.