CVE-2018-1992

Name: CVE-2018-1992
Creator: NVD / NIST
Published: 2019-03-21T16:00:33.107+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.35%

Last modified Jun 17, 2026

CVE-2018-1992 is a vulnerability of currently unknown severity. 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. EPSS estimates a 0.35% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

0.35%

27.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Ibm	Power System S922 \(9009-22a\) Firmware	< fw910.10
Ibm	Power System H922 \(9223-22h\) Firmware	< fw910.10
Ibm	Power System S914 \(9009-41a\) Firmware	< fw910.10
Ibm	Power System S924 \(9009-42a\) Firmware	< fw910.10
Ibm	Power System H924 \(9223-42h\) Firmware	< fw910.10
Ibm	Power System L922 \(9008-22l\) Firmware	< fw910.10
Ibm	Power System Ac922 \(8335-Gtg\) Firmware	< op910.30
Ibm	Power System Ac922 \(8335-Gth\) Firmware	< op920.10
Ibm	Power System Ac922 \(8335-Gtx\) Firmware	< op920.10
Ibm	Power System Lc921 \(9006-12p\) Firmware	< op920.10
Ibm	Power System Lc922 \(9006-22p\) Firmware	< op920.10

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/154345VDB Entry, Vendor Advisory
https://www.ibm.com/support/docview.wss?uid=ibm10868992Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/154345VDB Entry, Vendor Advisory
https://www.ibm.com/support/docview.wss?uid=ibm10868992Vendor Advisory

Timeline

Published: Mar 21, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-1992?

How severe is CVE-2018-1992?

Severity scoring for CVE-2018-1992 is pending analysis. The EPSS model estimates a 0.35% probability of exploitation in the next 30 days.

How do I fix CVE-2018-1992?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-1992?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST