Is CVE-2026-23039 in the CISA KEV catalog?

No. CVE-2026-23039 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the EPSS score for CVE-2026-23039?

CVE-2026-23039 has an EPSS score of 0.19% (9th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-23039?

Upgrade linux on debian unstable to 6.18.8-1 or later.

CVE & CISA-KEV Catalog

CVE-2026-23039

UNSCORED

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: drm/gud: fix NULL fb and crtc dereferences on USB disconnect On disconnect drm_atomic_helper_disable_all() is called which sets both the fb and crtc for a plane to NULL before invoking a commit. This causes a kernel oops on every display disconnect. Add guards for those dereferences.

How to fix

Remediation Available

linuxDebian

Fixed in:6.18.8-1CVE-2026-23039

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3.1 Vector

No CVSS vector data available.

Exploit Intelligence

0.19%probability of exploitation in 30 days

9thpercentile

Low risk: more likely to be exploited than 9% of all known CVEs.

References

Other references2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-02-03.