PT-2026-125551

CVE-2026-116840

Published

2026-10-27

Updated

2026-11-09

Description by

CVSS 4.0

6.9

Medium

MetricsAV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/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

Name of the Vulnerable Software and Affected Versions llama.cpp versions b5854 through b11274

Description An integer overflow exists in the gguf init from reader() function. This issue allows a bypass of size checks when padding tensor sizes near SIZE MAX. An attacker can provide a specially crafted GGUF file with a tensor size that pads to zero, resulting in an undersized data blob and subsequent out-of-bounds reads by consumers.

Recommendations Update llama.cpp to version b11275 or later.

Exploitability

Exploit

Fix

Impacts

Researchers

Jeongwoo Lee

X14Ngch3N

Xiang Chen

Vendors

Affected products

Weakness enumeration