Heap-based Buffer Overflow in gmg137 Snap7-rs Product
CVE-2025-14672

6.9MEDIUM

Key Information:

Vendor

Gmg137

Status
Snap7-rs
Vendor
CVE Published:
14 December 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-14672?

A critical security flaw exists in gmg137 Snap7-rs up to version 1.142.1 that allows for a heap-based buffer overflow through the TSnap7MicroClient::opWriteArea function in s7_micro_client.cpp. This vulnerability can be exploited remotely, potentially allowing attackers to manipulate memory and execute arbitrary code. The details of this exploit have been published, raising concerns about the security of systems utilizing this product.

Affected Version(s)

snap7-rs 1.142.0

snap7-rs 1.142.1

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-2025-14672 - Proof of Concept

References

https://vuldb.com/?id.336401
vdb-entrytechnical-description
https://vuldb.com/?ctiid.336401
signaturepermissions-required
https://gitee.com/gmg137/snap7-rs/issues/ID2H8E
exploitissue-tracking

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

VulDB Gitee Analyzer
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CVE-2025-14672 : Heap-based Buffer Overflow in gmg137 Snap7-rs Product