CVE-2026-112107CWE-119CWE-120

CVE-2026-112107

Medium · published October 19, 2026

CVSS v3.1
6.3
EPSS
0%
Percentile
36.2
In the wild
Unconfirmed
What it is

A flaw has been found in ztxz16 fastllm up to 1.8.2. Affected by this issue is the function SafeTensorItem::CreateBuffer of the file src/model.cpp of the component Safetensors Weight Loading. This manipulation of the argument data_offsets causes buffer overflow. The attack can be initiated remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
EPSS
0.00430 · 36.2th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Published
2026-10-19T16:17Z
References (7)
https://github.com/user-attachments/files/33027393/poc.zip · [email protected]https://github.com/ztxz16/fastllm/ · [email protected]https://github.com/ztxz16/fastllm/issues/758 · [email protected]https://vuldb.com/cve/CVE-2026-112107 · [email protected]https://vuldb.com/submit/1013187 · [email protected]https://vuldb.com/vuln/422072 · [email protected]https://vuldb.com/vuln/422072/cti · [email protected]
EPSS history
Timeline
  • 21 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 19 OCT 11:00Z
    ztxz16 fastllm Safetensors Weight Loading model.cpp CreateBuffer buffer overflow
    cvelistv5
  • 19 OCT 11:00Z
    ztxz16 fastllm Safetensors Weight Loading model.cpp CreateBuffer buffer overflow
    cvelistv5