CVE-2026-50264

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.15% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 4.6% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-07-27.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-06-05 10:36Z3 MO AGO

Last updated

2026-07-27 12:05Z1 MO AGO

Reserved

2026-06-04

Assigning CNA

redhat

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

• CWE-787Out-of-bounds WriteBase

Data version

5.2

Document digest

70a18581888b6c048c7e5ccb1768ce98753ef1811a23cf456419185d84ea11a9

• access.redhat.comRHSA-2026:26562https://access.redhat.com/errata/RHSA-2026:26562vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:26566https://access.redhat.com/errata/RHSA-2026:26566vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:26590https://access.redhat.com/errata/RHSA-2026:26590vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:26610https://access.redhat.com/errata/RHSA-2026:26610vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:26709https://access.redhat.com/errata/RHSA-2026:26709vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:28923https://access.redhat.com/errata/RHSA-2026:28923vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:29844https://access.redhat.com/errata/RHSA-2026:29844vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:36083https://access.redhat.com/errata/RHSA-2026:36083vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:36085https://access.redhat.com/errata/RHSA-2026:36085vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:36086https://access.redhat.com/errata/RHSA-2026:36086vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:36087https://access.redhat.com/errata/RHSA-2026:36087vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:36632https://access.redhat.com/errata/RHSA-2026:36632vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:36633https://access.redhat.com/errata/RHSA-2026:36633vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:36634https://access.redhat.com/errata/RHSA-2026:36634vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:36768https://access.redhat.com/errata/RHSA-2026:36768vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:36791https://access.redhat.com/errata/RHSA-2026:36791vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:36792https://access.redhat.com/errata/RHSA-2026:36792vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:36798https://access.redhat.com/errata/RHSA-2026:36798vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:38502https://access.redhat.com/errata/RHSA-2026:38502vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:38810https://access.redhat.com/errata/RHSA-2026:38810vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:46377https://access.redhat.com/errata/RHSA-2026:46377vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:46382https://access.redhat.com/errata/RHSA-2026:46382vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:46385https://access.redhat.com/errata/RHSA-2026:46385vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:46392https://access.redhat.com/errata/RHSA-2026:46392vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:46456https://access.redhat.com/errata/RHSA-2026:46456vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:46460https://access.redhat.com/errata/RHSA-2026:46460vendor-advisoryx_refsource_REDHAT
• access.redhat.comRHSA-2026:46473https://access.redhat.com/errata/RHSA-2026:46473vendor-advisoryx_refsource_REDHAT
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-50264vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2485389https://bugzilla.redhat.com/show_bug.cgi?id=2485389issue-trackingx_refsource_REDHAT
• gitlab.freedesktop.orghttps://gitlab.freedesktop.org/xorg/xserver/-/commit/339c279514326134b0878fc23ce6e9520440ce7f
• lists.x.orghttps://lists.x.org/archives/xorg-announce/2026-June/003702.html
• redhat.atlassian.nethttps://redhat.atlassian.net/browse/PSIRTSUPT-16950
• security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-50264.jsonx_sadp-csaf-vex