7.0highHigh
CVE-2026-16838
Ibm Aix
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to overwrite critical files and obtain sensitive information due to a time-of-check to time-of-use (TOCTOU) race condition.
Exploitation status
- A vendor advisory or patch reference has been published.
What the metrics mean
- It is requires local access to the machine.
- For an attacker who can reach it, exploitation depends on conditions outside the attacker's control.
- To exploit it, an ordinary user account is needed.
- Beyond that, no action by a user is required.
Scoring
- CVSS
- 7.0 (v3.1)
- Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H- Weakness
- CWE-367
- Assigned by
- psirt@us.ibm.com
Dates
- Published
- 2026-08-19
- Last modified
- 2026-08-26
- Sources
- NVD
Affected products
- Ibm Aix7.2.5 - 7.2.5.212, 7.3.2 - 7.3.2.5, 7.3.3 - 7.3.3.2, 7.3.4 - 7.3.4.1
- Ibm Vios4.1.0 - 4.1.0.50, 4.1.1.0 - 4.1.1.30, 4.1.2.0 - 4.1.2.20
As listed in the NVD configuration data. Not a statement about your estate.