How severe is CVE-2023-45931?

CVE-2023-45931 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-45931 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-45931?

CVE-2023-45931 affects Mesa3d Mesa. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-45931?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2023-45931 have an EU (EUVD) identifier?

Yes. CVE-2023-45931 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-50194.

When was CVE-2023-45931 published?

CVE-2023-45931 was published on 2024-03-27 and last updated on 2026-06-17.

CVE-2023-45931

CVE-2023-45931 is a high-severity vulnerability in Mesa3d Mesa with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-50194
Weakness: CWE-476
Affected product: Mesa3d Mesa
Published: 2024-03-27
Last modified: 2026-06-17

Description

Mesa 23.0.4 was discovered to contain a NULL pointer dereference in check_xshm() for the has_error state. NOTE: this is disputed because there is no scenario in which the vulnerability was demonstrated.

Frequently asked questions

What is CVE-2023-45931?: Mesa 23.0.4 was discovered to contain a NULL pointer dereference in check_xshm() for the has_error state. NOTE: this is disputed because there is no scenario in which the vulnerability was demonstrated.
How severe is CVE-2023-45931?: CVE-2023-45931 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-45931 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-45931?: CVE-2023-45931 affects Mesa3d Mesa. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-45931?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-45931 have an EU (EUVD) identifier?: Yes. CVE-2023-45931 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-50194.
When was CVE-2023-45931 published?: CVE-2023-45931 was published on 2024-03-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mesa3d:mesa:23.0.4:*:*:*:*:*:*:*

More vulnerabilities in Mesa3d Mesa

CVE-2026-40393 — High (CVSS 8.1): In Mesa before 25.3.6 and 26 before 26.0.1, out-of-bounds memory access can occur in WebGPU because the amount of…
CVE-2013-1872 — Medium (CVSS 6.8): The Intel drivers in Mesa 8.0.x and 9.0.x allow context-dependent attackers to cause a denial of service (reachable…
CVE-2013-1993 — Medium (CVSS 6.8): Multiple integer overflows in X.org libGLX in Mesa 9.1.1 and earlier allow X servers to trigger allocation of…
CVE-2023-45913 — Medium (CVSS 6.2): Mesa v23.0.4 was discovered to contain a NULL pointer dereference via the function dri2GetGlxDrawableFromXDrawableId().…
CVE-2023-45919 — Medium (CVSS 5.3): Mesa 23.0.4 was discovered to contain a buffer over-read in glXQueryServerString(). NOTE: this is disputed because…
CVE-2019-5068 — Medium (CVSS 4.4): An exploitable shared memory permissions vulnerability exists in the functionality of X11 Mesa 3D Graphics Library…

All CVEs affecting Mesa3d Mesa →

Other CWE-476 (NULL Pointer Dereference) vulnerabilities

CVE-2022-36648 — Critical (CVSS 10.0): The hardware emulation in the of_dpa_cmd_add_l2_flood of rocker device model in QEMU, as used in 7.0.0 and earlier,…
CVE-2020-14500 — Critical (CVSS 10.0): Secomea GateManager all versions prior to 9.2c, An attacker can send a negative value and overwrite arbitrary data.
CVE-2010-2495 — Critical (CVSS 10.0): The pppol2tp_xmit function in drivers/net/pppol2tp.c in the L2TP implementation in the Linux kernel before 2.6.34 does…
CVE-2026-46195 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: smb: client: validate dacloffset before building…
CVE-2026-31657 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: batman-adv: hold claim backbone gateways by…
CVE-2026-31436 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix possible wrong descriptor…

Browse all CWE-476 (NULL Pointer Dereference) vulnerabilities →