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Vulnerability record · CVE-2026-18849 · published 19 August 2026

CVE-2026-18849: Ibm openbmc path traversal vulnerability

Ibm · Openbmc

IBM OpenBMC FW1060.00 through FW1060.80 is affected by a vulnerability in the BMC firmware update process. An attacker with authenticated administrator-level access to the BMC can, under specific conditions, execute arbitrary code, resulting in a confidentiality, integrity, and availability impact.

6.8 CVSS 3.1 Medium EPSS 0.37% · top 71.0% CWE-22 · Path traversal
6.8CVSS 3.1 base score
0.37%EPSS exploitation probability, 30 days
NoNot in CISA KEV
9Affected product versions listed by NVD
1References
2 Sep 2026Last modified by NVD

Description

IBM OpenBMC FW1060.00 through FW1060.80 is affected by a vulnerability in the BMC firmware update process. An attacker with authenticated administrator-level access to the BMC can, under specific conditions, execute arbitrary code, resulting in a confidentiality, integrity, and availability impact.

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

Affected products

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

References

LinkTags
https://www.ibm.com/support/pages/node/7283590 Vendor Advisory

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Related vulnerabilities

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

8.8CVE-2026-18821Ibm power system s1122 \(9824-22a\) firmware out-of-bounds write vulnerabilityIBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 Power Systems Firmware is a…EPSS 0.20%8.8CVE-2026-17414Ibm power system s1122 \(9824-22a\) firmware improper input validation vulnerabilityIBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 Power Systems Firmware is a…EPSS 0.19%8.8CVE-2026-7868Ibm power system s1122 \(9824-22a\) firmware incorrect authorization vulnerabilityIBM OPENBMC FW1110.00 through FW1110.20, and FW1060.00 through FW1060.71 allows ReadOnly users to escalate privileges and give themselves administrat…EPSS 0.37%8.4CVE-2026-17091Ibm power system s1122 \(9824-22a\) firmware integer overflow vulnerabilityIBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerabil…EPSS 0.15%8.4CVE-2026-11885Ibm power system s1122 \(9824-22a\) firmware classic buffer overflow vulnerabilityIBM PowerVM Hypervisor FW1110.00 through FW1110.20, FW1060.00 through FW1060.71, and FW950.00 through FW950.H1 A carefully crafted OS hypervisor call…EPSS 0.15%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-2026-16707Ibm power system s1122 \(9824-22a\) firmware out-of-bounds read vulnerabilityIBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerabil…EPSS 0.17%8.2CVE-2026-16661Ibm power system s1122 \(9824-22a\) firmware integer overflow vulnerabilityIBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerabil…EPSS 0.17%

Source: NIST National Vulnerability Database (record CVE-2026-18849), CISA KEV, FIRST EPSS (scores of 2026-10-17). This page is refreshed as NVD updates the record.