VulnerabilityAnalyzed

CVE-2026-16926

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to overwrite arbitrary files due to improper neutralization of special elements in input.

CRITICAL 9.1EPSS 0.31%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.31%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to overwrite arbitrary files due to improper neutralization of special elements in input.

CVSS 3.1: 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
EPSS: 0.31% probability · 24th percentile
CISA KEV: Not listed
Weakness: CWE-73
Affected: ibm/vios · ibm/aix
Source: psirt@us.ibm.com

References

https://www.ibm.com/support/pages/node/7283858Vendor Advisory, Patch

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.