← Vulnerability feed

Vulnerability record · CVE-2018-1992 · published 21 March 2019

CVE-2018-1992: Ibm power system s922 \(9009-22a\) firmware memory buffer overflow vulnerability

Ibm · Power System S922 \(9009 22a\) Firmware

The IBM Power 9 OP910, OP920, and FW910 boot firmware's bootloader is responsible for loading and validating the initial boot firmware image that drives the rest of the system's hardware initialization. The bootloader firmware contains a buffer overflow vulnerability such that, if an attacker were able to replace the initial boot firmware image with a very carefully crafted and sufficiently large, malicious replacement, it could cause the bootloader, during the load of that image, to overwrite its own instruction memory and circumvent secure boot protections, install trojans, etc. IBM X-Force ID: 154345.

6.4 CVSS 3.0 Medium EPSS 0.35% · top 73.1% CWE-119 · Memory buffer overflow
6.4CVSS 3.0 base score, v2 6.9
0.35%EPSS exploitation probability, 30 days
NoNot in CISA KEV
11Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

The IBM Power 9 OP910, OP920, and FW910 boot firmware's bootloader is responsible for loading and validating the initial boot firmware image that drives the rest of the system's hardware initialization. The bootloader firmware contains a buffer overflow vulnerability such that, if an attacker were able to replace the initial boot firmware image with a very carefully crafted and sufficiently large, malicious replacement, it could cause the bootloader, during the load of that image, to overwrite its own instruction memory and circumvent secure boot protections, install trojans, etc. IBM X-Force ID: 154345.

CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

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

References

LinkTags
https://exchange.xforce.ibmcloud.com/vulnerabilities/154345 VDB EntryVendor Advisory
https://www.ibm.com/support/docview.wss?uid=ibm10868992 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/154345 VDB EntryVendor Advisory
https://www.ibm.com/support/docview.wss?uid=ibm10868992 Vendor Advisory

Track CVE-2018-1992 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

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

9.8CVE-2024-45656Ibm power system e1080 \(9080-hex\) firmware hard-coded credentials vulnerabilityIBM Flexible Service Processor (FSP) FW860.00 through FW860.B3, FW950.00 through FW950.C0, FW1030.00 through FW1030.61, FW1050.00 through FW1050.21, …EPSS 0.45%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-2026-17093Ibm 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%

Source: NIST National Vulnerability Database (record CVE-2018-1992), CISA KEV, FIRST EPSS (scores of 2026-10-06). This page is refreshed as NVD updates the record.