CVE-2026-20911

critical

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.

References

https://blog.talosintelligence.com/foxit-libraw-vulnerabilities/

https://talosintelligence.com/vulnerability_reports/TALOS-2026-2330

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-20911.json

https://bugzilla.redhat.com/show_bug.cgi?id=2455959

https://access.redhat.com/security/cve/CVE-2026-20911

Details

Source: Mitre, NVD

Published: 2026-04-07

Updated: 2026-06-30

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00043