DEBIAN-CVE-2026-43629

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Source
https://security-tracker.debian.org/tracker/CVE-2026-43629
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-43629.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-43629
Upstream
  • CVE-2026-43629
Published
2026-08-06T22:17:05Z
Modified
2026-09-14T17:03:12Z
Severity
  • 9.2 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/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 CVSS Calculator
Summary
[none]
Details

llama.cpp builds b4882 through b9058 contain a heap buffer overflow vulnerability in the KV cache state restore path where the state_read_data() function computes write size without overflow checking, allowing attackers with write access to the slot_save_path directory to corrupt heap memory. Attackers can craft malicious state files where cell_count multiplication overflows or exceeds tensor buffer allocation to write attacker-controlled bytes past buffer boundaries, potentially resulting in heap metadata corruption, model weight corruption, or arbitrary code execution via function pointer overwrite.

References

Affected packages

Debian:14 / llama.cpp

Package

Name
llama.cpp
Purl
pkg:deb/debian/llama.cpp?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

Other
5151+dfsg-1~exp2
5151+dfsg-1~exp3
5318+dfsg-1
5318+dfsg-2
5713+dfsg-1
5760+dfsg-1
5760+dfsg-2
5760+dfsg-3
5760+dfsg-4
5882+dfsg-1
5882+dfsg-2
5882+dfsg-3~exp1
5882+dfsg-3~exp2
5882+dfsg-3~exp3
5882+dfsg-3
5882+dfsg-4
6641+dfsg-1
6641+dfsg-2
6641+dfsg-3
7593+dfsg-1
7593+dfsg-2
7593+dfsg-3
7965+dfsg-1
8064+dfsg-1
8064+dfsg-2
8461+dfsg-1
8611+dfsg-1
8681+dfsg-1
8870+dfsg-1
8941+dfsg-1
9009+dfsg-1
9071+dfsg-1
9190+dfsg-1
9413+dfsg-1
9555+dfsg-1
9601+dfsg-1
9721+dfsg-1
9895+dfsg-1
9895+dfsg-2
9895+dfsg-3
9951+dfsg-1
9951+dfsg-2
9951+dfsg-3
10108+dfsg-1
10108+dfsg1-1
10108+dfsg1-2
10192+dfsg-1
10192+dfsg-2~exp1
10192+dfsg-2
10271+dfsg-1
10344+dfsg-1
10438+dfsg-1
1:0.*
1:0.1.2+dfsg-1~exp1
1:0.2.0+dfsg1-1~exp1
1:0.2.0+dfsg1-1
1:0.4.0+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-43629.json"