CVE-2026-13573
LowCVSS 3.3Summary
A vulnerability was found in llvm-project up to version 22.1.6 in the function llvm::StringMap::insert within the ValueSymbolTable component. Data manipulation leads to a stack-based buffer overflow. Local access is required, and the exploit has been made public.
Risk Assessment
The organization is at risk of local privilege escalation or application crash when using the vulnerable LLVM library. The lack of vendor response increases the exploitation risk.
Recommendation
Immediately update llvm-project to a version newer than 22.1.6 if available. If no patch exists, restrict local access to systems using LLVM.
Original NVD description (English source)
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.