What is GHSA-6m46-rpq9-jh59?

GHSA-6m46-rpq9-jh59 is a security advisory published by GitHub Security Advisories with Medium severity. A heap buffer overflow in the TS7Worker::PerformFunctionWrite() function (/core/s7_server.cpp) of...

Which CVE IDs does GHSA-6m46-rpq9-jh59 cover?

GHSA-6m46-rpq9-jh59 covers the following CVE IDs: CVE-2026-51218. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-6m46-rpq9-jh59?

GHSA-6m46-rpq9-jh59 has a CVSS v3 base score of 6.5, published by GitHub Security Advisories.

GHSA-6m46-rpq9-jh59MediumCVSS 6.5

A heap buffer overflow in the TS7Worker::PerformFunctionWrite() function (/core/s7_server.cpp) of...

Vendor

GitHub Security Advisories

Published

June 30, 2026

Last Modified

June 30, 2026

🔗 CVE IDs covered (1)

CVE-2026-51218 →

📋 Description

A heap buffer overflow in the TS7Worker::PerformFunctionWrite() function (/core/s7_server.cpp) of snap7 v1.4.3 allows attackers to cause a Denial of Service (DoS) via a crafted packet.

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-51218
https://github.com/davenardella/snap7/issues/14
https://github.com/davenardella/snap7
https://github.com/advisories/GHSA-6m46-rpq9-jh59