CVE-2025-48379
Pillow vulnerability can cause write buffer overflow on BCn encoding
7.1
HIGH
CVSS 3.1
EPSS 0.10%
Description
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.
How to fix CVE-2025-48379
To remediate CVE-2025-48379, upgrade the affected package to a fixed version below.
- —no fix listed
- —upgrade to 11.3.0 or later
- —upgrade to 89f1f4626a2aaf5f3d5ca6437f41def2998fbe09 or later
Is CVE-2025-48379 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- >= 11.2.0
- >= 11.2.0, < 11.3.0
- from 0, < 89f1f4626a2aaf5f3d5ca6437f41def2998fbe09, < ef98b3510e3e4f14b547762764813d7e5ca3c5a4 | >= 11.2.0, < 11.3.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |