CVE catalog
CVE-2026-43627
llama.cpp builds b1283 through b9058 contain an integer overflow vulnerability in the llama_batch_init() function where unchecked multiplications in malloc() calls can wrap past INT32_MAX when computi
- Severity
- High · CVSS 8.5
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.20% · Oct 25, 2026
llama.cpp builds b1283 through b9058 contain an integer overflow vulnerability in the llama_batch_init() function where unchecked multiplications in malloc() calls can wrap past INT32_MAX when computing allocation sizes. Attackers can pass specially crafted parameters to trigger integer overflow, causing heap corruption and potentially achieving arbitrary code execution through subsequent batch operations that write past allocated buffer boundaries.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | llama.cpp | Not reported | Not reported | unknown |
| Debian | llama.cpp | 14 | 10108+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 10108+dfsg1-1 | vulnerable |
| Debian | llama.cpp | 14 | 10108+dfsg1-2 | vulnerable |
| Debian | llama.cpp | 14 | 10192+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 10192+dfsg-2 | vulnerable |
| Debian | llama.cpp | 14 | 10192+dfsg-2~exp1 | vulnerable |
| Debian | llama.cpp | 14 | 10271+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 10344+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 10438+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 1:0.1.2+dfsg-1~exp1 | vulnerable |
| Debian | llama.cpp | 14 | 1:0.2.0+dfsg1-1 | vulnerable |
| Debian | llama.cpp | 14 | 1:0.2.0+dfsg1-1~exp1 | vulnerable |
| Debian | llama.cpp | 14 | 1:0.4.0+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 1:0.4.1+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 1:0.5.0+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 1:0.5.0+dfsg-2 | vulnerable |
| Debian | llama.cpp | 14 | 1:0.6.0+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 1:0.6.0+dfsg-2 | vulnerable |
| Debian | llama.cpp | 14 | 1:0.7.0+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 1:0.7.0+dfsg-2 | vulnerable |
| Debian | llama.cpp | 14 | 5151+dfsg-1~exp2 | vulnerable |
| Debian | llama.cpp | 14 | 5151+dfsg-1~exp3 | vulnerable |
| Debian | llama.cpp | 14 | 5318+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 5318+dfsg-2 | vulnerable |
| Debian | llama.cpp | 14 | 5713+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 5760+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 5760+dfsg-2 | vulnerable |
| Debian | llama.cpp | 14 | 5760+dfsg-3 | vulnerable |
| Debian | llama.cpp | 14 | 5760+dfsg-4 | vulnerable |
| Debian | llama.cpp | 14 | 5882+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 5882+dfsg-2 | vulnerable |
| Debian | llama.cpp | 14 | 5882+dfsg-3 | vulnerable |
| Debian | llama.cpp | 14 | 5882+dfsg-3~exp1 | vulnerable |
| Debian | llama.cpp | 14 | 5882+dfsg-3~exp2 | vulnerable |
| Debian | llama.cpp | 14 | 5882+dfsg-3~exp3 | vulnerable |
| Debian | llama.cpp | 14 | 5882+dfsg-4 | vulnerable |
| Debian | llama.cpp | 14 | 6641+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 6641+dfsg-2 | vulnerable |
| Debian | llama.cpp | 14 | 6641+dfsg-3 | vulnerable |
| Debian | llama.cpp | 14 | 7593+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 7593+dfsg-2 | vulnerable |
| Debian | llama.cpp | 14 | 7593+dfsg-3 | vulnerable |
| Debian | llama.cpp | 14 | 7965+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 8064+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 8064+dfsg-2 | vulnerable |
| Debian | llama.cpp | 14 | 8461+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 8611+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 8681+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 8870+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 8941+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 9009+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 9071+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 9190+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 9413+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 9555+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 9601+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 9721+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 9895+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 9895+dfsg-2 | vulnerable |
| Debian | llama.cpp | 14 | 9895+dfsg-3 | vulnerable |
| Debian | llama.cpp | 14 | 9951+dfsg-1 | vulnerable |
| Debian | llama.cpp | 14 | 9951+dfsg-2 | vulnerable |
| Debian | llama.cpp | 14 | 9951+dfsg-3 | vulnerable |
Fixed-version evidence
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://github.com/Vladimir-tokarev-cyera/llama-cpp-security-patches]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-43627]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-43627]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43627.json]
- [https://www.vulncheck.com/advisories/llama-cpp-b1283-b9058-integer-overflow-in-llama-batch-init-function]
[FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]