Vulnerability · Published Dec 14, 2025 · Assigned by VulDB
CVE-2025-14672gmg137 snap7-rs s7_micro_client.cpp opWriteArea heap-based overflow
High 7.3
In plain English
A high-severity heap buffer overflow in snap7-rs from gmg137. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities).
Severity (CVSS 3.1)7.3High
Exploit odds (30 days)0.5%top 57.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A flaw has been found in gmg137 snap7-rs up to 1.142.1. This impacts the function TSnap7MicroClient::opWriteArea of the file s7_micro_client.cpp. Executing a manipulation can lead to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been published and may be used.
Affected products (as reported)
Weakness: CWE-122, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
References
- VDB-336401 | gmg137 snap7-rs s7_micro_client.cpp opWriteArea heap-based overflow vdb-entry, technical-description
- VDB-336401 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- https://gitee.com/gmg137/snap7-rs/issues/ID2H8E exploit, issue-tracking
- https://gitee.com/gmg137/snap7-rs/ product