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CVE-2026-13573

3.3 · LOW

A vulnerability was found in llvm llvm-project up to 22.1.6.

Published Jun 29, 2026CWE-119EPSS 0.17%

Overview

CVE-2026-13573 is a low-severity vulnerability. It was published on June 29, 2026 and has a CVSS 3.1 base score of 3.3 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

A vulnerability was found in llvm llvm-project up to 22.1.6. This affects the function llvm::StringMap::insert in the library /lib/IR/ValueSymbolTable.cpp of the component ValueSymbolTable Module. The manipulation results in stack-based buffer overflow. Attacking locally is a requirement. The exploit has been made public and could be used. The presence of this vulnerability remains uncertain at this time. The LLVM project explains, that the reported behavior is outside its documented security scope and therefore not considered a security vulnerability.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/llvm/llvm-project/GitHubgithub.com/llvm/llvm-project/issues/199187GitHubgithub.com/user-attachments/files/28141697/poc.zipRefvuldb.com/cve/CVE-2026-13573Refvuldb.com/submit/844457Refvuldb.com/vuln/374581Refvuldb.com/vuln/374581/cti

How CyberStrike helps

Frequently asked questions

What is CVE-2026-13573?

CVE-2026-13573 is a low-severity vulnerability. It was published on June 29, 2026 and has a CVSS 3.1 base score of 3.3 (LOW).

How severe is CVE-2026-13573?

This vulnerability has a CVSS 3.1 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-13573?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-13573?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-13573 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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