What is GHSA-rpqv-p78w-84w6?

GHSA-rpqv-p78w-84w6 is a security advisory published by GitHub Security Advisories with High severity. Heap-based buffer overflow in Microsoft Internet Messaging API allows an authorized attacker to...

Which CVE IDs does GHSA-rpqv-p78w-84w6 cover?

GHSA-rpqv-p78w-84w6 covers the following CVE IDs: CVE-2026-83919. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-rpqv-p78w-84w6?

GHSA-rpqv-p78w-84w6 has a CVSS v3 base score of 7.8, published by GitHub Security Advisories.

GHSA-rpqv-p78w-84w6HighCVSS 7.8

Heap-based buffer overflow in Microsoft Internet Messaging API allows an authorized attacker to...

Vendor

GitHub Security Advisories

Published

October 13, 2026

Last Modified

October 13, 2026

🔗 CVE IDs covered (1)

CVE-2026-83919 →

📋 Description

Heap-based buffer overflow in Microsoft Internet Messaging API allows an authorized attacker to execute code locally.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-83919
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83919
https://github.com/advisories/GHSA-rpqv-p78w-84w6