Vulnerability · Published Aug 19, 2026 · Assigned by ibm

CVE-2026-19321Power System Integer Overflow

Medium 6.7

In plain English

A medium-severity integer overflow in Power Systems Firmware from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities).

Severity (CVSS 3.1)6.7Medium

Exploit odds (30 days)0.2%top 95.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, and FW1060.00 through FW1060.80 is affected by a vulnerability in the host firmware. An attacker with service access to the service processor can supply a carefully crafted command that could leak the contents of hardware registers that should be inaccessible to the service processor. Successful exploitation could result in limited confidentiality or availability impacts to the affected host system.

Affected products (as reported)

Vendor	Product	Versions
IBM	Power Systems Firmware	FW1120.00FW1110.00 – through FW1110.30FW1060.00 – through FW1060.80

Weakness: CWE-190 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:H

References

https://www.ibm.com/support/pages/node/7283222 vendor-advisory, patch