What is GHSA-959p-g3cm-4rcv?

GHSA-959p-g3cm-4rcv is a security advisory published by GitHub Security Advisories with Medium severity. Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose...

Which CVE IDs does GHSA-959p-g3cm-4rcv cover?

GHSA-959p-g3cm-4rcv covers the following CVE IDs: CVE-2026-55054. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-959p-g3cm-4rcv?

GHSA-959p-g3cm-4rcv has a CVSS v3 base score of 6.5, published by GitHub Security Advisories.

GHSA-959p-g3cm-4rcvMediumCVSS 6.5

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose...

Vendor

GitHub Security Advisories

Published

July 14, 2026

Last Modified

July 14, 2026

🔗 CVE IDs covered (1)

CVE-2026-55054 →

📋 Description

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-55054
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55054
https://github.com/advisories/GHSA-959p-g3cm-4rcv