6.7mediumMedium
CVE-2026-19783
Ibm Vios
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to cause kernel memory corruption due to insufficient validation. A crafted filesystem image can trigger an out-of-bounds kernel-stack write during directory reads, causing a system crash or potentially enabling privilege escalation.
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, no special conditions are needed to exploit it.
- To exploit it, an administrative account is needed.
- Beyond that, no action by a user is required.
Scoring
- CVSS
- 6.7 (v3.1)
- Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H- Weakness
- CWE-787
- Assigned by
- psirt@us.ibm.com
Dates
- Published
- 2026-08-20
- Last modified
- 2026-08-26
- Sources
- NVD
Affected products
- Ibm Vios4.1.0 - 4.1.0.50, 4.1.1.0 - 4.1.1.30, 4.1.2.0 - 4.1.2.20
- 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
As listed in the NVD configuration data. Not a statement about your estate.