How severe is CVE-2023-26924?

CVE-2023-26924 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-26924 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-26924?

CVE-2023-26924 affects Llvm. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-26924?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-26924 published?

CVE-2023-26924 was published on 2023-03-27 and last updated on 2026-06-17.

CVE-2023-26924

CVE-2023-26924 is a medium-severity vulnerability in Llvm with a CVSS 3.x base score of 5.5. 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-120.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Llvm
Published: 2023-03-27
Last modified: 2026-06-17

Description

LLVM a0dab4950 has a segmentation fault in mlir::outlineSingleBlockRegion. NOTE: third parties dispute this because the LLVM security policy excludes "Language front-ends ... for which a malicious input file can cause undesirable behavior."

Frequently asked questions

What is CVE-2023-26924?: LLVM a0dab4950 has a segmentation fault in mlir::outlineSingleBlockRegion. NOTE: third parties dispute this because the LLVM security policy excludes "Language front-ends ... for which a malicious input file can cause undesirable behavior."
How severe is CVE-2023-26924?: CVE-2023-26924 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-26924 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-26924?: CVE-2023-26924 affects Llvm. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-26924?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-26924 published?: CVE-2023-26924 was published on 2023-03-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:llvm:llvm:2023-01-22:*:*:*:*:*:*:*

More vulnerabilities in Llvm

CVE-2023-29942 — Medium (CVSS 5.5): llvm-project commit a0138390 was discovered to contain a segmentation fault via the component…
CVE-2023-29941 — Medium (CVSS 5.5): llvm-project commit a0138390 was discovered to contain a segmentation fault via the component…
CVE-2023-29939 — Medium (CVSS 5.5): llvm-project commit a0138390 was discovered to contain a segmentation fault via the component…
CVE-2023-29935 — Medium (CVSS 5.5): llvm-project commit a0138390 was discovered to contain an assertion failure at !replacements.count(op) && "operation…
CVE-2023-29934 — Medium (CVSS 5.5): llvm-project commit 6c01b5c was discovered to contain a segmentation fault via the component mlir::Type::getDialect().
CVE-2023-29933 — Medium (CVSS 5.5): llvm-project commit bd456297 was discovered to contain a segmentation fault via the component mlir::Block::getArgument.

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