Vulnerability · Published Dec 14, 2025 · Assigned by VulDB
CVE-2025-14673gmg137 snap7-rs client.rs as_ct_write 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 vulnerability has been found in gmg137 snap7-rs up to 1.142.1. Affected is the function snap7_rs::client::S7Client::as_ct_write of the file /tests/snap7-rs/src/client.rs. The manipulation leads to heap-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public 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-336402 | gmg137 snap7-rs client.rs as_ct_write heap-based overflow vdb-entry, technical-description
- VDB-336402 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- https://gitee.com/gmg137/snap7-rs/issues/ID2H74 exploit, issue-tracking
- https://gitee.com/gmg137/snap7-rs/ product