Is CVE-2026-13573 actively exploited?

No active exploitation of CVE-2026-13573 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-13573 be exploited remotely?

No. CVE-2026-13573 requires local access to exploit.

What is the CVSS score of CVE-2026-13573?

CVE-2026-13573 has a CVSS score of 3.3 (LOW).

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LOW

CVE-2026-13573

CWE-119Published: June 29, 2026· Updated: Jun 29, 2026

3.3

CVSS v3.1

EPSS:0.12%probability of exploitation in 30 daysPercentile:2.5th

Official 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 project was informed of the problem early through an issue report but has not responded yet.

NVD Source

Technical Analysis

CVE-2026-13573 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.