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.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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. (CVE-2026-13573)

The remote Fedora 45 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-ebbaee3606 advisory.

    Automatic update for python-llvmlite-0.48.0-1.fc45.

    ##### **Changelog**

    ```
    * Fri Jul  3 2026 Benjamin A. Beasley <code@musicinmybrain.net> - 0.48.0-1
    - Update to 0.48.0
    - Closes RHBZ#2453491; fixes RHBZ#2495139; fixes RHBZ#2496401

    ```

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2026-13573)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
459280	Echo: llvm-toolchain-19: security update to 1:19.1.7-3	Tenable Cloud Security	Echo Local Security Checks	Local	medium
459280	Echo: llvm-toolchain-19: security update to 1:19.1.7-3	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	medium
325235	Fedora 45 : python-llvmlite (2026-ebbaee3606)	Nessus	Fedora Local Security Checks	Local	medium
323920	Linux Distros Unpatched Vulnerability : CVE-2026-13573	Nessus	Misc.	Local	medium

Detections

Analytics

CVE-2026-13573

medium

Tenable Plugins

medium

medium

medium

medium