VulnerabilityModified
CVE-2026-20889
A heap-based buffer overflow vulnerability exists in the x3f_thumb_loader functionality of LibRaw Commit d20315b.
CRITICAL 9.8EPSS 0.80%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.80%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A heap-based buffer overflow vulnerability exists in the x3f_thumb_loader functionality of LibRaw 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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.80% probability · 55th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190, CWE-120
- Affected
- libraw/libraw
- Source
- talos-cna@cisco.com
References
- https://talosintelligence.com/vulnerability_reports/TALOS-2026-2358Exploit, Third Party Advisory
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2358Exploit, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:13284
- https://access.redhat.com/errata/RHSA-2026:14224
- https://access.redhat.com/errata/RHSA-2026:14655
- https://access.redhat.com/errata/RHSA-2026:14673
- https://access.redhat.com/security/cve/CVE-2026-20889
- https://bugzilla.redhat.com/show_bug.cgi?id=2455942
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-20889.json
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.