What is GHSA-73p4-5mmq-g6fj?

GHSA-73p4-5mmq-g6fj is a security advisory published by GitHub Security Advisories with Critical severity. Integer underflow (wrap or wraparound) in Windows PowerShell allows an unauthorized attacker to...

Which CVE IDs does GHSA-73p4-5mmq-g6fj cover?

GHSA-73p4-5mmq-g6fj covers the following CVE IDs: CVE-2026-83578. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-73p4-5mmq-g6fj?

GHSA-73p4-5mmq-g6fj has a CVSS v3 base score of 9.8, published by GitHub Security Advisories.

GHSA-73p4-5mmq-g6fjCriticalCVSS 9.8

Integer underflow (wrap or wraparound) in Windows PowerShell allows an unauthorized attacker to...

Vendor

GitHub Security Advisories

Published

October 13, 2026

Last Modified

October 13, 2026

🔗 CVE IDs covered (1)

CVE-2026-83578 →

📋 Description

Integer underflow (wrap or wraparound) in Windows PowerShell allows an unauthorized attacker to execute code over a network.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-83578
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83578
https://github.com/advisories/GHSA-73p4-5mmq-g6fj