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CVE-2026-50262

Low

No strong exploitation signal.

CVSS base
5.5 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS — probability of exploitation (30 days)
0.1%
3.2th percentile
CISA KEV
Not listed
Weakness / dates
CWE-125
Published 2026-06-05 · modified 2026-08-05

CVSS breakdown

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

Attack VectorLLocal
Attack ComplexityLLow
Privileges RequiredLLow
User InteractionNNone
ScopeUUnchanged
ConfidentialityHHigh
IntegrityNNone
AvailabilityNNone

Timeline

Description

An out-of-bounds read flaw was found in the X.Org X server and Xwayland in __glXDisp_ChangeDrawableAttributes(). A wrong size validation check can read a client-controlled number of bytes, exceeding the request buffer, leading to information disclosure. A write path also exists but requires byte-swapped clients which is disabled by default.

Affected

redhat x.org

References

Official: NVD · CVE.org