What is GHSA-wmfq-mfcf-jvxp?

GHSA-wmfq-mfcf-jvxp is a security advisory published by GitHub Security Advisories with Medium severity. IBM PowerVM Hypervisor Platform KeyStore (PKS) and virtual TPM FW1110.00 through FW1110.20,...

Which CVE IDs does GHSA-wmfq-mfcf-jvxp cover?

GHSA-wmfq-mfcf-jvxp covers the following CVE IDs: CVE-2026-4936. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-wmfq-mfcf-jvxp?

GHSA-wmfq-mfcf-jvxp has a CVSS v3 base score of 5.1, published by GitHub Security Advisories.

GHSA-wmfq-mfcf-jvxpMediumCVSS 5.1

IBM PowerVM Hypervisor Platform KeyStore (PKS) and virtual TPM FW1110.00 through FW1110.20,...

Vendor

GitHub Security Advisories

Published

August 19, 2026

Last Modified

August 19, 2026

🔗 CVE IDs covered (1)

CVE-2026-4936 →

📋 Description

IBM PowerVM Hypervisor Platform KeyStore (PKS) and virtual TPM FW1110.00 through FW1110.20, FW1060.00 through FW1060.71, and FW950.00 through FW950.H2 use persistent storage key seeds that result in an AES key with reduced strength. An attacker with access to the service processor or HMC could exploit this weakness to derive the encryption key and access the data.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-4936
https://www.ibm.com/support/pages/node/7283890
https://github.com/advisories/GHSA-wmfq-mfcf-jvxp