Low severity · published Jun 29, 2026
CVE-2026-13574
llvm llvm-project Bitcode File IntrinsicInst.cpp getBasePtr heap-based overflow
3.3
CVSS
0.2%
EPSS
No
On KEV
Description
A vulnerability was determined in llvm llvm-project up to 22.1.6. This impacts the function GCRelocateInst::getBasePtr in the library llvm/lib/IR/IntrinsicInst.cpp of the component Bitcode File Handler. This manipulation causes heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. There are still doubts about whether this vulnerability truly exists. The LLVM project explains, that the reported behavior is outside its documented security scope and therefore not considered a security vulnerability.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LL
llvm-project · llvm
22.1.0; 22.1.1; 22.1.2; 22.1.3; 22.1.4; 22.1.5; +1 more · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-13574
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-13574
github.com
https://github.com/llvm/llvm-project/
github.com
https://github.com/llvm/llvm-project/issues/199191
github.com
https://github.com/user-attachments/files/28142619/poc.zip
vuldb.com
https://vuldb.com/cve/CVE-2026-13574
vuldb.com
https://vuldb.com/submit/844468
vuldb.com
https://vuldb.com/vuln/374582
More from llvm-project
3.3
CVE-2026-13573
llvm llvm-project ValueSymbolTable ValueSymbolTable.cpp insert stack-based overflow
