CVE-2022-22374Network attack vector

Host disruption via BMC firmware downgrade

Published Mar 24, 2022 · Updated Sep 16, 2024

Firmware downgrade weakness in IBM Power System AC922 OP910 through OP940 allows remote attackers to disrupt host operation. IBM identifies the BMC firmware-update path but has not published the missing or ineffective check that permits the downgrade. The path is network-reachable without prior privileges, but exploitation requires high-complexity conditions and can impair host operation.

CVSS severity6.5
Medium
EPSS probability1.00%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Firmware downgrade weakness in IBM Power System AC922 OP910 through OP940 allows remote attackers to disrupt host operation. IBM identifies the BMC firmware-update path but has not published the missing or ineffective check that permits the downgrade. The path is network-reachable without prior privileges, but exploitation requires high-complexity conditions and can impair host operation.

The record

CVE
CVE-2022-22374
Published
Mar 24, 2022
Updated
Sep 16, 2024
Vendor
IBM
Product
IBM Power System AC922
Classifications
T1495
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 24, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=OP910
  2. Affected versionversion=OP920
  3. Affected versionversion=OP930
  4. Affected versionversion=OP940

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM Power System AC922version=OP910; version=OP920; version=OP930; version=OP940

Published CVSS scores

9.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
6.5IBM CorporationCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
8.5NIST NVDAV:N/AC:L/Au:N/C:N/I:P/A:C

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1495Firmware Corruption

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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