Buffer Overflow Vulnerability in ztxz16 Fastllm Product by Vendor ztxz16
CVE-2026-112108

5.3MEDIUM

Key Information:

Vendor

Ztxz16

Status
Fastllm
Vendor
CVE Published:
19 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-112108?

A vulnerability has been identified in the ztxz16 fastllm product affecting versions up to 0.1.8.2. This flaw resides within the function GGUFBuffer::ReadString located in the file third_party/gguf/gguf.cpp. The issue arises from improper handling of the argument 'len', leading to a potential buffer overflow. This vulnerability can be triggered remotely, allowing attackers to exploit the flaw in a networked environment. Although the project was previously notified of the issue through an issue report, there has been no official acknowledgment or remediation response.

Affected Version(s)

fastllm 0.1.8.0

fastllm 0.1.8.1

fastllm 0.1.8.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-112108 - Proof of Concept

References

https://vuldb.com/vuln/422102
vdb-entrytechnical-description
https://vuldb.com/vuln/422102/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-112108
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Dem0000000 (VulDB User)
VulDB CNA Team
.