IBM Power System AC922 (8335-Gtx) Firmware vulnerabilities

9 CVEs affecting IBM Power System AC922 (8335-Gtx) Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-17042, published 2026-08-19.

Highest priority

Known exploited (CISA KEV) first, then by EPSS exploit probability.

CVE-2021-38960, published 2022-02-04. High severity, CVSS 7.5. EPSS: 1.1% chance of exploitation in the next 30 days. IBM OPENBMC OP920, OP930, and OP940 could allow an unauthenticated user to obtain sensitive information. IBM X-Force ID: 212047.
CVE-2022-22488, published 2022-12-12. Medium severity, CVSS 4.9. EPSS: 0.5% chance of exploitation in the next 30 days. IBM OpenBMC OP910 and OP940 could allow a privileged user to cause a denial of service by uploading or deleting too many CA certificates in a short period of time. IBM X-Force ID: 2226337.
CVE-2021-29891, published 2022-08-22. Medium severity, CVSS 4.9. EPSS: 0.5% chance of exploitation in the next 30 days. IBM OPENBMC OP910 and OP940 could allow a privileged user to upload an improper site identity certificate that may cause it to lose network services. IBM X-Force ID: 207221.
CVE-2018-1992, published 2019-03-21. Medium severity, CVSS 6.4. EPSS: 0.4% chance of exploitation in the next 30 days. The IBM Power 9 OP910, OP920, and FW910 boot firmware's bootloader is responsible for loading and validating the initial boot firmware image that drives the rest of the system's hardware…
CVE-2026-16933, published 2026-08-19. High severity, CVSS 8.2. EPSS: 0.2% chance of exploitation in the next 30 days. IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 through OP940.81 (Power…
CVE-2026-17100, published 2026-08-19. High severity, CVSS 8.2. EPSS: 0.2% chance of exploitation in the next 30 days. Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1, and OP940.00 - OP940.81 is affected by a…
CVE-2026-17093, published 2026-08-19. High severity, CVSS 8.2. EPSS: 0.2% chance of exploitation in the next 30 days. IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 - OP940.81 (Power HMC) is…
CVE-2026-17429, published 2026-08-19. High severity, CVSS 8.1. EPSS: 0.2% chance of exploitation in the next 30 days. IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 - OP940.81 (Power HMC) is…
CVE-2026-17042, published 2026-08-19. High severity, CVSS 7.3. EPSS: 0.1% chance of exploitation in the next 30 days. 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…