HOMEVULNERABILITIESCVE-2026-23338
NONE

CVE-2026-23338

Published: March 25, 2026· Updated: Mar 25, 2026

EPSS:0.02%probability of exploitation in 30 daysPercentile:3.9th

Official Description

In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu/userq: Do not allow userspace to trivially triger kernel warnings

Userspace can either deliberately pass in the too small num_fences, or the

required number can legitimately grow between the two calls to the userq

wait ioctl. In both cases we do not want the emit the kernel warning

backtrace since nothing is wrong with the kernel and userspace will simply

get an errno reported back. So lets simply drop the WARN_ONs.

(cherry picked from commit 2c333ea579de6cc20ea7bc50e9595ef72863e65c)

NVD Source

Technical Analysis

CVE-2026-23338 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

Affected Vendors & Products

Mentioned vendors (from description):
Linux
CPE data not yet available in NVD for this CVE.

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

All References (3)

Quick Facts

CVE IDCVE-2026-23338
SeverityNONE
CISA KEVNo
EPSS (30d)0.02%
PublishedMar 25, 2026

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2026-23338 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.