CVE-2026-18849: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in IBM OPENBMC
IBM OpenBMC versions FW1060.00 through FW1060.80 contain a path traversal vulnerability in the BMC firmware update process. This flaw allows an attacker with authenticated administrator-level access to execute arbitrary code, impacting confidentiality, integrity, and availability. The vulnerability is identified as CWE-22 and has a CVSS score of 6.8, indicating medium severity. No official patch or remediation guidance is currently available from the vendor. The vulnerability requires high privileges and does not involve user interaction.
AI Analysis
Technical Summary
CVE-2026-18849 is a path traversal vulnerability (CWE-22) affecting IBM OpenBMC firmware versions FW1060.00 through FW1060.80. It exists in the BMC firmware update process, enabling an attacker with authenticated administrator-level access to execute arbitrary code under specific conditions. The vulnerability impacts confidentiality, integrity, and availability of the system. The CVSS 3.1 base score is 6.8 (AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H). No vendor advisory or patch information is currently available, and no known exploits are reported in the wild.
Potential Impact
An attacker with authenticated administrator privileges on the BMC can exploit this vulnerability to execute arbitrary code, potentially compromising system confidentiality, integrity, and availability. This could lead to unauthorized access or control over the BMC firmware update process, affecting the management of the affected hardware.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict administrator-level access to the BMC to trusted personnel only and monitor for any suspicious activity related to firmware updates.
CVE-2026-18849: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in IBM OPENBMC
Description
IBM OpenBMC versions FW1060.00 through FW1060.80 contain a path traversal vulnerability in the BMC firmware update process. This flaw allows an attacker with authenticated administrator-level access to execute arbitrary code, impacting confidentiality, integrity, and availability. The vulnerability is identified as CWE-22 and has a CVSS score of 6.8, indicating medium severity. No official patch or remediation guidance is currently available from the vendor. The vulnerability requires high privileges and does not involve user interaction.
CVSS v3.1
Score 6.8medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-18849 is a path traversal vulnerability (CWE-22) affecting IBM OpenBMC firmware versions FW1060.00 through FW1060.80. It exists in the BMC firmware update process, enabling an attacker with authenticated administrator-level access to execute arbitrary code under specific conditions. The vulnerability impacts confidentiality, integrity, and availability of the system. The CVSS 3.1 base score is 6.8 (AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H). No vendor advisory or patch information is currently available, and no known exploits are reported in the wild.
Potential Impact
An attacker with authenticated administrator privileges on the BMC can exploit this vulnerability to execute arbitrary code, potentially compromising system confidentiality, integrity, and availability. This could lead to unauthorized access or control over the BMC firmware update process, affecting the management of the affected hardware.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict administrator-level access to the BMC to trusted personnel only and monitor for any suspicious activity related to firmware updates.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-08-04T15:35:55.877Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a86e0f3acd9273b49838510
Added to database: 08/20/2026, 11:11:47 UTC
Last enriched: 08/20/2026, 11:23:29 UTC
Last updated: 08/20/2026, 12:12:05 UTC
Views: 2
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