VulnerabilityAnalyzed

CVE-2026-16686

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to access NFS-exported filesystems due to improper authentication.

HIGH 8.2EPSS 0.29%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.29%). 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 access NFS-exported filesystems due to improper authentication.

CVSS 3.1: 8.2 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
EPSS: 0.29% probability · 22th percentile
CISA KEV: Not listed
Weakness: CWE-287
Affected: ibm/vios · ibm/aix
Source: psirt@us.ibm.com

References

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

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