CVE-2023-45913

Application crash via unexpected DRI2 swap-complete event

Published Mar 27, 2024 · Updated Nov 4, 2025

NULL pointer dereference in freedesktop Mesa 23.0.4 allows local users to crash a GLX application through an unexpected X11 event. The DRI2 swap-complete path uses dri2GetGlxDrawableFromXDrawableId() during a DRI3 session and dereferences a null drawable result. The claim requires control of the X11 server; the CVE record is disputed because no scenario demonstrating the crash was established.

CVSS severity6.2
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in freedesktop Mesa 23.0.4 allows local users to crash a GLX application through an unexpected X11 event. The DRI2 swap-complete path uses dri2GetGlxDrawableFromXDrawableId() during a DRI3 session and dereferences a null drawable result. The claim requires control of the X11 server; the CVE record is disputed because no scenario demonstrating the crash was established.

The record

CVE
CVE-2023-45913
Published
Mar 27, 2024
Updated
Nov 4, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 27, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.1Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
6.2CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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