CVE-2026-20911
9.8
CRITICAL
CVSS 3.1
EPSS 0.50%
Description
A heap-based buffer overflow vulnerability exists in the HuffTable::initval functionality of LibRaw Commit 0b56545 and Commit d20315b. A specially crafted malicious file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.
How to fix CVE-2026-20911
To remediate CVE-2026-20911, upgrade the affected package to a fixed version below.
- Debian/libraw—upgrade to 0.22.1-1 or later
Is CVE-2026-20911 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 0.22.1-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |