CVE-2026-13573

LOW

llvm llvm-project ValueSymbolTable ValueSymbolTable.cpp insert stack-based overflow

Title source: cna
STIX 2.1

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.

References (7)

Core 7
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-374581 | llvm llvm-project ValueSymbolTable ValueSymbolTable.cpp insert stack-based overflow
https://vuldb.com/vuln/374581
Signature, Permissions Required signature permissions-required
VDB-374581 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/vuln/374581/cti
Third Party Advisory third-party-advisory
CVE-2026-13573 | CVE Analysis and Report
https://vuldb.com/cve/CVE-2026-13573
Third Party Advisory third-party-advisory
Submit #844457 | LLVM LLVM Project commit 3b3a3c2 Stack-based Buffer Overflow
https://vuldb.com/submit/844457

Scores

CVSS v3 3.3
EPSS 0.0012
EPSS Percentile 2.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-119 CWE-121
Status published
Products (7)
llvm/llvm-project 22.1.0
llvm/llvm-project 22.1.1
llvm/llvm-project 22.1.2
llvm/llvm-project 22.1.3
llvm/llvm-project 22.1.4
llvm/llvm-project 22.1.5
llvm/llvm-project 22.1.6
Published Jun 29, 2026
Tracked Since Jun 29, 2026