Linux · Security advisory · May 28, 2026
RLSA-2026:19343: xorg-x11-server security update
RLSA-2026:19343, released May 28, 2026, fixes 3 CVEs in xorg-x11-server (version 0:1.20.11-34.el9_8). None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
3
None rated Critical
Exploited
0
None reported
Exploitation more likely
0
Vendor assessment
Highest EPSS
0.0038
32nd percentile
Priority of the 3 CVEs
Patch now 0
Urgent 0
High 3
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| xorg-x11-server | rocky 9 | 0:1.20.11-34.el9_8 |
CVEs this fix closes
| Priority | CVE | Title | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| High | CVE-2026-33999 | Xorg: xwayland: x.org x server: denial of service via integer underflow in xkb compatibility map handling | 7.8 | 0.0038 | None reported | |
| High | CVE-2026-34001 | xorg-x11-server-common: X.Org is an open-source implementation of the X Window System | 7.8 | 0.0026 | None reported | |
| High | CVE-2026-34003 | xorg-x11-server-common: X.Org is an open-source implementation of the X Window System | 7.8 | 0.0025 | None reported |
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