CVE-2026-13573
4.8
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| llvm | llvm-project | 22.1.0 | affected |
| llvm | llvm-project | 22.1.1 | affected |
| llvm | llvm-project | 22.1.2 | affected |
| llvm | llvm-project | 22.1.3 | affected |
| llvm | llvm-project | 22.1.4 | affected |
| llvm | llvm-project | 22.1.5 | affected |
| llvm | llvm-project | 22.1.6 | affected |
Weaknesses
- CWE-121: Stack-based Buffer Overflow
- CWE-119: Memory Corruption
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: no
- Technical Impact: partial
References
- https://vuldb.com/vuln/374581
- https://vuldb.com/vuln/374581/cti
- https://vuldb.com/cve/CVE-2026-13573
- https://vuldb.com/submit/844457
- https://github.com/llvm/llvm-project/issues/199187
- https://github.com/user-attachments/files/28141697/poc.zip
- https://github.com/llvm/llvm-project/
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