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CVE.org (no NVD analysis yet)· CNA suse

CVE-2026-88812: X.Org Server XKB SetGeometry TextDoodad Double Free

HighCVSS 7.8 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 31/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.18% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: X.org xorg-x11-server 21.1.25; x.org xwayland 24.1.14; azl3 xorg-x11-server-Xwayland 24.1.13-1 on Azure Linux 3.0 24.1.14-1.

Low priority for now. Upgrade to X.org xorg-x11-server 21.1.25; x.org xwayland 24.1.14; azl3 xorg-x11-server-Xwayland 24.1.13-1 on Azure Linux 3.0 24.1.14-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A double free in XKB SetGeometryin X.Org X Server before 21.1.25 and X Wayland before 24.1.14 could be used by attached clients to cause a crash or potentially code in the x server context.

Published
Oct 27, 2026
Updated
Nov 4, 2026
EPSS
0.1% · 8th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · suse
7.8
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-88812

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (suse). Independent of NVD's CPE analysis and usually ahead of it.

  • x.org xwayland

    • before 24.1.14affected · rpm

  • X.org xorg-x11-server

    • before 21.1.25affected · rpm

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:10xorg-x11-server-Xwaylandbefore 24.1.9-4.el10_2.424.1.9-4.el10_2.4
AlmaLinux:10xorg-x11-server-Xwayland-develbefore 24.1.9-4.el10_2.424.1.9-4.el10_2.4
AlmaLinux:8xorg-x11-server-commonbefore 1.20.11-28.el8_10.51.20.11-28.el8_10.5
AlmaLinux:8xorg-x11-server-develbefore 1.20.11-28.el8_10.51.20.11-28.el8_10.5
AlmaLinux:8xorg-x11-server-sourcebefore 1.20.11-28.el8_10.51.20.11-28.el8_10.5
AlmaLinux:8xorg-x11-server-Xdmxbefore 1.20.11-28.el8_10.51.20.11-28.el8_10.5
AlmaLinux:8xorg-x11-server-Xephyrbefore 1.20.11-28.el8_10.51.20.11-28.el8_10.5
AlmaLinux:8xorg-x11-server-Xnestbefore 1.20.11-28.el8_10.51.20.11-28.el8_10.5
AlmaLinux:8xorg-x11-server-Xorgbefore 1.20.11-28.el8_10.51.20.11-28.el8_10.5
AlmaLinux:8xorg-x11-server-Xvfbbefore 1.20.11-28.el8_10.51.20.11-28.el8_10.5
AlmaLinux:8xorg-x11-server-Xwaylandbefore 21.1.3-20.el8_10.421.1.3-20.el8_10.4
AlmaLinux:9xorg-x11-server-commonbefore 1.20.11-34.el9_8.41.20.11-34.el9_8.4
AlmaLinux:9xorg-x11-server-develbefore 1.20.11-34.el9_8.41.20.11-34.el9_8.4
AlmaLinux:9xorg-x11-server-sourcebefore 1.20.11-34.el9_8.41.20.11-34.el9_8.4
AlmaLinux:9xorg-x11-server-Xdmxbefore 1.20.11-34.el9_8.41.20.11-34.el9_8.4
AlmaLinux:9xorg-x11-server-Xephyrbefore 1.20.11-34.el9_8.41.20.11-34.el9_8.4
AlmaLinux:9xorg-x11-server-Xnestbefore 1.20.11-34.el9_8.41.20.11-34.el9_8.4
AlmaLinux:9xorg-x11-server-Xorgbefore 1.20.11-34.el9_8.41.20.11-34.el9_8.4
AlmaLinux:9xorg-x11-server-Xvfbbefore 1.20.11-34.el9_8.41.20.11-34.el9_8.4
AlmaLinux:9xorg-x11-server-Xwaylandbefore 24.1.9-4.el9_8.424.1.9-4.el9_8.4
AlmaLinux:9xorg-x11-server-Xwayland-develbefore 24.1.9-4.el9_8.424.1.9-4.el9_8.4
Alpine:v3.24xorg-serverbefore 21.1.25-r021.1.25-r0
Alpine:v3.24xwaylandbefore 24.1.14-r024.1.14-r0
Debian:12xorg-serverfrom 0—

+42

Same product

x.org: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-93523X.Org Server XInput2 PassiveUngrabDevice Out-of-Bounds Write
    31Monitor
  • CVE-2026-93522X.Org Server Glamor CopyArea Heap Buffer Overflow
    31Monitor
  • CVE-2026-93521X.Org Server RandR ChangeProviderProperty Heap Buffer Overflow
    31Monitor

Published before and after this one in the same product

  • Later →CVE-2026-93515Oct 28, 2026 · .Org Server Present Extension Use-After-Free
    27Monitor
  • Later →CVE-2026-93516Oct 28, 2026 · .Org Server XInput Passive Grab Use-After-Free
    22Monitor
  • Later →CVE-2026-93518Oct 28, 2026 · X.Org Server XKB ResizeKeyType Numeric Truncation
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
X.org xorg-x11-server21.1.25Vendor (CNA)
x.org xwayland24.1.14Vendor (CNA)
azl3 xorg-x11-server-Xwayland 24.1.13-1 on Azure Linux 3.024.1.14-1 · Release NotesMicrosoft (MSRC)
almalinux:xorg-x11-server-common1.20.11-34.el9_8.4 · AlmaLinux:9Package registry (OSV)
almalinux:xorg-x11-server-devel1.20.11-34.el9_8.4 · AlmaLinux:9Package registry (OSV)
almalinux:xorg-x11-server-source1.20.11-34.el9_8.4 · AlmaLinux:9Package registry (OSV)
almalinux:xorg-x11-server-Xdmx1.20.11-34.el9_8.4 · AlmaLinux:9Package registry (OSV)
almalinux:xorg-x11-server-Xephyr1.20.11-34.el9_8.4 · AlmaLinux:9Package registry (OSV)
almalinux:xorg-x11-server-Xnest1.20.11-34.el9_8.4 · AlmaLinux:9Package registry (OSV)
almalinux:xorg-x11-server-Xorg1.20.11-34.el9_8.4 · AlmaLinux:9Package registry (OSV)
almalinux:xorg-x11-server-Xvfb1.20.11-34.el9_8.4 · AlmaLinux:9Package registry (OSV)
almalinux:xorg-x11-server-Xwayland24.1.9-4.el10_2.4 · AlmaLinux:10Package registry (OSV)
almalinux:xorg-x11-server-Xwayland-devel24.1.9-4.el10_2.4 · AlmaLinux:10Package registry (OSV)
alpine:xorg-server21.1.25-r0 · Alpine:v3.24Package registry (OSV)
alpine:xwayland24.1.14-r0 · Alpine:v3.24Package registry (OSV)
debian:xorg-server2:21.1.25-1 · Debian:14Package registry (OSV)
debian:xwayland2:24.1.14-1 · Debian:14Package registry (OSV)
opensuse:xorg-x11-server21.1.24-2.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:xwayland24.1.13-2.1 · openSUSE:TumbleweedPackage registry (OSV)
red hat:xorg-x11-server0:1.20.11-34.el9_8.4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:xorg-x11-server-common0:1.20.11-34.el9_8.4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:xorg-x11-server-Xdmx0:1.20.11-34.el9_8.4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:xorg-x11-server-Xdmx-debuginfo0:1.20.11-34.el9_8.4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:xorg-x11-server-Xephyr0:1.20.11-34.el9_8.4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:xorg-x11-server-Xephyr-debuginfo0:1.20.11-34.el9_8.4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:xorg-x11-server-Xnest0:1.20.11-34.el9_8.4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:xorg-x11-server-Xnest-debuginfo0:1.20.11-34.el9_8.4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:xorg-x11-server-Xorg0:1.20.11-34.el9_8.4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:xorg-x11-server-Xorg-debuginfo0:1.20.11-34.el9_8.4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:xorg-x11-server-Xvfb0:1.20.11-34.el9_8.4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)

+5

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. Fix recordedsame day
  3. TodayNov 13, 2026+17 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Not on record for this CVE: variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-415 · Double Free

CVSS vector

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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. SSVC exploitation— → none
  2. Exploit maturity— → none
  3. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records