CyberSecBulletin
CVE-2026-7868NVD status: Analyzed

OPENBMC: Incorrect Authorization

Published Updated By the CyberSecBulletin desk

CVE-2026-7868 is a high-severity incorrect authorization vulnerability in OPENBMC from IBM, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. Affected OPENBMC versions: FW1110.00 through FW1110.20; FW1060.00 through FW1060.71. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.37% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update Power System S1122 (9824-22a) Firmware to fw1110.30 or a later version.
  2. Update Power System S1124 (9824-42a) Firmware to fw1110.30 or a later version.
  3. Update Power System S1122s (9824-22b) Firmware to fw1110.30 or a later version.
  4. Read the advisory on ibm.com for workarounds and exact fixed builds.

Affected products and versions

VendorProductAffected versionsFixed in
IBMOPENBMCFW1110.00 through FW1110.20; FW1060.00 through FW1060.71Not stated
IBMPower System S1122 (9824-22a) Firmwarefw1110.00 up to, but not including, fw1110.30fw1110.30
IBMPower System S1124 (9824-42a) Firmwarefw1110.00 up to, but not including, fw1110.30fw1110.30
IBMPower System S1122s (9824-22b) Firmwarefw1110.00 up to, but not including, fw1110.30fw1110.30
IBMPower System S1114 (9824-41b) Firmwarefw1110.00 up to, but not including, fw1110.30fw1110.30
IBMPower System L1122 (9856-22h) Firmwarefw1110.00 up to, but not including, fw1110.30fw1110.30
IBMPower System L1124 (9856-42h) Firmwarefw1110.00 up to, but not including, fw1110.30fw1110.30
IBMPower System E1150 (9043-mru) Firmwarefw1110.00 up to, but not including, fw1110.30fw1110.30
IBMPower System S1022 (9105-22a) Firmwarefw1060.00 up to, but not including, fw1060.72fw1060.72
IBMPower System S1024 (9105-42a) Firmwarefw1060.00 up to, but not including, fw1060.72fw1060.72
IBMPower System S1022s (9105-22b) Firmwarefw1060.00 up to, but not including, fw1060.72fw1060.72
IBMPower System S1014 (9105-41b) Firmwarefw1060.00 up to, but not including, fw1060.72fw1060.72
IBMPower System L1022 (9786-22h) Firmwarefw1060.00 up to, but not including, fw1060.72fw1060.72
IBMPower System L1024 (9786-42h) Firmwarefw1060.00 up to, but not including, fw1060.72fw1060.72
IBMPower System E1050 (9043-mrx) Firmwarefw1060.00 up to, but not including, fw1060.72fw1060.72
IBMPower System S1012 (9028-21b) Firmwarefw1060.00 up to, but not including, fw1060.72fw1060.72

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
LowA basic user account is enough.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.16.5MediumCNA (us.ibm.com)
CVSS 3.18.8HighNVD

Official description

IBM OPENBMC FW1110.00 through FW1110.20, and FW1060.00 through FW1060.71 allows ReadOnly users to escalate privileges and give themselves administrator privileges.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

How developers prevent this class of flaw

  • Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) to enforce the roles at the appropriate boundaries. Note that this approach may not protect against horizontal authorization, i.e., it will not protect a user from attacking others with the same role.
  • Ensure that access control checks are performed related to the business logic. These checks may be different than the access control checks that are applied to more generic resources such as files, connections, processes, memory, and database records. For example, a database may restrict access for medical records to a specific database user, but each record might only be intended to be accessible to the patient and the patient's doctor.
  • Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, consider using authorization frameworks such as the JAAS Authorization Framework and the OWASP ESAPI Access Control feature.

More Incorrect Authorization vulnerabilities (CWE-863)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in OPENBMC

All OPENBMC vulnerabilities

Recent Incorrect Authorization vulnerabilities

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