CVE-2025-36238 — Power System Exposure of Sensitive System Information
IBM PowerVM Hypervisor FW1110.00 through FW1110.03, FW1060.00 through FW1060.51, and FW950.00 through FW950.F0 could allow a local user with administration privileges to obtain sensitive information from a Virtual TPM through a series of PowerVM service procedures.
Who exploits it and how urgent it is
A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.
How the score was calculated
- EPSS 0.2% (30-day exploitation probability)+1
- Technical severity (medium)+3
The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.
CISA SSVC assessment CISA
Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.
Remediation
Fixes and mitigations documented by the sources — linked to the original advisory.
No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.
First 24 hours
Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.
- Identify exposed assets running the affected vendor/product/version combinations (Ibm Powervm Hypervisor).
- No fix documented in the sources: reduce exposure and monitor the vendor advisory.
- Search available logs for exploit probes, errors and authentication anomalies.
Affected scope
Vendor, product and versions as the sources word them.
| Vendor | Product | Versions | Status | Source |
|---|---|---|---|---|
| Ibm | Powervm Hypervisor |
version fw1060.41version fw950.e0version fw950.e1version fw950.f0version fw1060.00version fw1060.10version fw1060.12version fw1060.20 and 26 moreversion fw1060.21version fw1060.40version fw950.d1version fw1060.50version fw1060.51version fw1110.00version fw1110.01version fw1110.03version fw950.71version fw950.10version fw950.11version fw950.20version fw950.30version fw950.40version fw950.50version fw950.60version fw950.70version fw950.00version fw950.80version fw950.90version fw950.a0version fw950.b0version fw950.c0version fw950.c1version fw950.c2version fw950.d0 |
Vulnerable | NIST National Vulnerability Database |
| Ibm | Powervm Hypervisor | ≥ FW1110.00 and ≤ FW1110.03≥ FW1060.00 and ≤ FW1060.51≥ FW950.00 and ≤ FW950.F0 | Vulnerable | CVE Program (cve.org) e CISA ADP |
Attack characteristics
The CVSS vector, decoded. It describes the attack, not your exposure to it.
Every base score collected
Sources score independently and may disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Scored by |
|---|---|---|---|---|---|
| 6.0 | CVSS 3.1 | Medium | 1.5 | 4.0 | psirt@us.ibm.com via NIST National Vulnerability Database |
| 6.0 | CVSS 3.1 | Medium | — | — | ibm via CVE Program (cve.org) e CISA ADP |
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N (score shown at the top: psirt@us.ibm.com) Weakness MITRE
Weakness class according to MITRE’s CWE catalog.
EPSS over time FIRST
Oct 13, 2026 → Oct 15, 2026 · 3 reading(s) · max 0.17%
Detection
Read off the CVSS vector and the weakness class. Starting points, not tested rules.
- Local/physical vector: focus on endpoint telemetry (EDR) from affected hosts.
Timeline
What happened to this CVE, newest first.
- 2026
- Affected products added · ibm/powervm hypervisor
- SSVC assessment updated
- Record published
- CVSS changed · 6.0
- Source status changed · → Analyzed
- Record created in this database
- CVE published
Source activity
Repeated readings are counted rather than listed.
- 1× Official description updated · Oct 13, 2026 – Oct 13, 2026
References
1 on the record
Elsewhere on this site
Related CVEs (same products)
- High CVE-2026-96265 IBM Power Systems Firmware Improper Memory Buffer Restriction 3d
- High CVE-2026-96264 IBM Power Systems Firmware FW1060.00 through FW1060.81 is affected by a vulnerability in the... 3d
- High CVE-2026-96266 IBM Power Systems Firmware Buffer Overflow 3d
- High CVE-2026-96262 IBM Power Systems Firmware FW1060.00 through FW1060.81 is affected by a vulnerability in the... 3d
- High CVE-2026-96261 IBM Power Systems Firmware Buffer Overflow 3d
- High CVE-2026-96263 IBM Power Systems Firmware Buffer Overflow 3d
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No fixed version, patch or mitigation documented.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.
Answered from this record
Text assembled only from the fields above — no additional claims.
What should defenders know first?
CVE-2025-36238 is "Power System Exposure of Sensitive System Information", rated Medium. It affects Powervm Hypervisor (Ibm); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 6.0 describes technical severity. EPSS 0.17% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.
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