CVE-2026-4936: Power System Insufficient Entropy
IBM · PowerVM Hypervisor
Vendor fix available · Affected: IBM PowerVM Hypervisor · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 1% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- IBM · PowerVM Hypervisorfrom FW1110.00 up to and including FW1110.20; from FW1060.00 up to and including FW1060.71; from FW950.00 up to and including FW950.H2
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- IBM
- Published
- August 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-4936 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.