CVE-2026-93306 — Out-of-bounds Read in Ibm Power System E1080 (9080-hex) Firmware
IBM Server Firmware FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and FW950.00 through FW950.H3 is affected by a vulnerability in the ASMI web interface. An unauthenticated attacker on the management network can send a malformed HTTPS request to ASMI, causing the web server to crash with possible memory corruption and generate an error log. The ASMI web interface will restart automatically; however, repeated exploitation could result in a sustained loss of access to the ASMI management interface, resulting in an integrity and availability impact.
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
- Technical severity (high)+6
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.
Remediation
Fixes and mitigations documented by the sources — linked to the original advisory.
- Documented patch — www.ibm.com (NIST National Vulnerability Database)
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 Power System E1080 (9080-hex) Firmware, Ibm Power System E1180 (9080-heu) Firmware, Ibm Power System E950 (9040-mr9) Firmware…).
- Apply the fixed version or the patch documented under Remediation.
- Search available logs for exploit probes matching the vulnerability class (memory corruption), errors and authentication anomalies.
Affected scope
Vendor, product and versions as the sources word them.
| Vendor | Product | Versions | Status | Source |
|---|---|---|---|---|
| Ibm | Power System E1080 (9080-hex) Firmware | ≥ fw1060.00 and < fw1060.82 | Vulnerable | NIST National Vulnerability Database |
| Ibm | Power System E1180 (9080-heu) Firmware | ≥ fw1110.00 and < fw1110.32≥ fw1120.00 and < fw1120.02 | Vulnerable | NIST National Vulnerability Database |
| Ibm | Power System E950 (9040-mr9) Firmware | ≥ fw950.00 and < fw950.h4 | Vulnerable | NIST National Vulnerability Database |
| Ibm | Power System E980 (9080-m9s) Firmware | ≥ fw950.00 and < fw950.h4 | Vulnerable | NIST National Vulnerability Database |
| Ibm | Power System H922 (9223-22s) Firmware | ≥ fw950.00 and < fw950.h4 | Vulnerable | NIST National Vulnerability Database |
| Ibm | Power System H924 (9223-42s) Firmware | ≥ fw950.00 and < fw950.h4 | Vulnerable | NIST National Vulnerability Database |
| Ibm | Power System S914 (9009-41g) Firmware | ≥ fw950.00 and < fw950.h4 | Vulnerable | NIST National Vulnerability Database |
| Ibm | Power System S922 (9009-22g) Firmware | ≥ fw950.00 and < fw950.h4 | Vulnerable | NIST National Vulnerability Database |
| Ibm | Power System S924 (9009-42g) Firmware | ≥ fw950.00 and < fw950.h4 | Vulnerable | NIST National Vulnerability Database |
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 |
|---|---|---|---|---|---|
| 7.1 | CVSS 3.1 | High | 2.8 | 4.2 | psirt@us.ibm.com via NIST National Vulnerability Database |
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H (score shown at the top: psirt@us.ibm.com) Weakness MITRE
Weakness class according to MITRE’s CWE catalog.
Detection
Read off the CVSS vector and the weakness class. Starting points, not tested rules.
- Correlate service crashes/restarts with inbound traffic; repeated crashes may indicate attempts.
Timeline
What happened to this CVE, newest first.
- 2026
- Record published
- Fix documented
- CVSS changed · 7.1
- 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 15, 2026 – Oct 15, 2026
References
1 on the record
Elsewhere on this site
Related CVEs (same products)
- Low CVE-2026-19492 Use of Uninitialized Variable in Ibm Power System S1122 (9824-22a) Firmware 21d
- Medium CVE-2026-18870 Out-of-bounds Read in Ibm Power System S1122 (9824-22a) Firmware 21d
- Medium CVE-2026-17504 Integer Underflow in Ibm Power System S1122 (9824-22a) Firmware 21d
- Low CVE-2026-17511 IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31… 21d
- Medium CVE-2026-17503 Improper Input Validation in Ibm Power System S1122 (9824-22a) Firmware 21d
- Medium CVE-2026-17413 IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31… 21d
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 FIRST EPSS score.
- No CISA SSVC assessment.
- 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-2026-93306 is "Out-of-bounds Read in Ibm Power System E1080 (9080-hex) Firmware", rated High. It affects Power System E1080 (9080-hex) Firmware (Ibm); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 7.1 describes technical severity. 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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