Buffer overflow in Python 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: 0.003 (17.5th 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 — versions 11.2.1
- Python-pillow Pillow — versions >= 11.2.0, < 11.3.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Exploit, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2025-48379?
- CVE-2025-48379 is a high-severity vulnerability in Python 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.