Power System Out-of-bounds Read
CVSS score
7.3
EPSS probability
%0.1
Risk score
0.0
Published
1 mo ago
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Vulnerability description
DayBreach CVE AI Research
CVE-2026-17042 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.
IBM Power Systems Firmware FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 - OP940.81 (Power HMC) is affected by a vulnerability in host firmware NVRAM parsing. An attacker with root access to a guest partition on an OpenPOWER system can write a specially crafted NVRAM image, causing the host firmware boot stage to crash with possible memory corruption. This condition persists until operator intervention — clearing NVRAM via the service processor — to restore normal operation. This vulnerability only affects OpenPOWER systems; systems running PowerVM are not affected. Successful exploitation results in an integrity and availability impact to the managed system.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-17042 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | ibm | Power Systems Firmware | View |
| 2 | ibm | power system s922 (9009-22g) firmware | View |
| 3 | ibm | power system s922 (9009-22g) | View |
| 4 | ibm | power system h922 (9223-22s) firmware | View |
| 5 | ibm | power system h922 (9223-22s) | View |
| 6 | ibm | power system s914 (9009-41g) firmware | View |
| 7 | ibm | power system s914 (9009-41g) | View |
| 8 | ibm | power system s924 (9009-42g) firmware | View |
| 9 | ibm | power system s924 (9009-42g) | View |
| 10 | ibm | power system h924 (9223-42s) firmware | View |
| 11 | ibm | power system h924 (9223-42s) | View |
| 12 | ibm | power system e950 (9040-mr9) firmware | View |
| 13 | ibm | power system e950 (9040-mr9) | View |
| 14 | ibm | power system e980 (9080-m9s) firmware | View |
| 15 | ibm | power system e980 (9080-m9s) | View |
| 16 | ibm | power system ac922 (8335-gth) firmware | View |
| 17 | ibm | power system ac922 (8335-gth) | View |
| 18 | ibm | power system ac922 (8335-gtx) firmware | View |
| 19 | ibm | power system ac922 (8335-gtx) | View |
| 20 | ibm | power hardware management console (7063-cr2) firmware | View |
| 21 | ibm | power hardware management console (7063-cr2) | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 7.3 | CVSS V3_1 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H | CVE CNA |
| 7.3 | CVSS V31 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H | NVD |
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-17042 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-17042 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
Similar Vulnerabilities
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