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Vulnerability record · CVE-2021-29891 · published 22 August 2022

CVE-2021-29891: Ibm power system ac922 \(8335-gtg\) firmware unrestricted file upload vulnerability

Ibm · Power System Ac922 \(8335 Gtg\) Firmware

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.

4.9 CVSS 3.1 Medium EPSS 0.45% · top 63.1% CWE-434 · Unrestricted file upload
4.9CVSS 3.1 base score
0.45%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://exchange.xforce.ibmcloud.com/vulnerabilities/207221 VDB EntryVendor Advisory
https://www.ibm.com/support/pages/node/6614233 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/207221 VDB EntryVendor Advisory
https://www.ibm.com/support/pages/node/6614233 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.2CVE-2026-16933Ibm power system s1122 \(9824-22a\) firmware integer overflow vulnerabilityIBM 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 …EPSS 0.17%8.2CVE-2026-17093Ibm power system s1122 \(9824-22a\) firmware stack-based buffer overflow vulnerabilityIBM 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 …EPSS 0.17%8.2CVE-2026-17100Ibm power system s1122 \(9824-22a\) firmware out-of-bounds write vulnerabilityPower 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…EPSS 0.17%8.1CVE-2026-17429Ibm power system s1122 \(9824-22a\) firmware incorrect authorization vulnerabilityIBM 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 …EPSS 0.15%7.5CVE-2021-38960Ibm power system ac922 \(8335-gtx\) firmware information exposure vulnerabilityIBM OPENBMC OP920, OP930, and OP940 could allow an unauthenticated user to obtain sensitive information. IBM X-Force ID: 212047.EPSS 1.1%7.3CVE-2026-17042Ibm power system s922 \(9009-22g\) firmware out-of-bounds read vulnerabilityIBM 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 vulner…EPSS 0.14%6.4CVE-2018-1992Ibm power system s922 \(9009-22a\) firmware memory buffer overflow vulnerabilityThe IBM Power 9 OP910, OP920, and FW910 boot firmware's bootloader is responsible for loading and validating the initial boot firmware image that dri…EPSS 0.35%6.1CVE-2021-38961Ibm power system ac922 \(8335-gtg\) firmware cross-site scripting vulnerabilityIBM OPENBMC OP910 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus alteri…EPSS 0.63%

Source: NIST National Vulnerability Database (record CVE-2021-29891), CISA KEV, FIRST EPSS (scores of 2026-10-05). This page is refreshed as NVD updates the record.