TI-2026-15848 Aliases CVE-2026-19442 GHSA-mrg6-q394-8jmx

Vulnerabilities in IBM AIX and PowerVM VIOS

LOW 39CWE-822Published 2026-08-20 · Updated 2026-08-22

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-822 and the CVSS impact.

Summary

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 has a pointer validation flaw exists in the AIX Virtual SCSI (vSCSI) initiator driver. Successful exploitation may result in denial of service, privilege escalation, or full compromise of the client LPAR kernel.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00164 5th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
IBM	AIX	7.2; 7.3	—	No fix listed	CNA
IBM	PowerVM VIOS	4.1	—	No fix listed	CNA

AIX VendorIBM Affected 7.2; 7.3 Fixed in — No fix listed CNA
PowerVM VIOS VendorIBM Affected 4.1 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:ibm:vios::::::::	4.1.0 to before 4.1.0.50; 4.1.1.0 to before 4.1.1.30; 4.1.2.0 to before 4.1.2.20	Vulnerable	IBM
cpe:2.3:o:ibm:aix::::::::	7.2.5 – 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	Vulnerable	IBM

cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:* Versions 4.1.0 to before 4.1.0.50; 4.1.1.0 to before 4.1.1.30; 4.1.2.0 to before 4.1.2.20 Vulnerable ·IBM
cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:* Versions 7.2.5 – 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 Vulnerable ·IBM

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Advisory · 2026-08-19
IBM AIX, PowerVM VIOS — ibm.com/support/pages/node/7283858
144 records Highest priority Priority MEDIUM 78 MEDIUM, 66 LOW
Other records, highest priority first
- TI-2026-14245 Vulnerabilities in IBM AIX and PowerVM VIOSPriority MEDIUM 51
- TI-2026-14253 Vulnerabilities in IBM AIX and PowerVM VIOSPriority MEDIUM 50
- TI-2026-14251 Vulnerabilities in IBM AIX and PowerVM VIOSPriority MEDIUM 50
Show all 144 records → Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-19442
2026-10-03 Alias added: GHSA-mrg6-q394-8jmx

References

Patch 1

https://www.ibm.com/support/pages/node/7283858

TI-2001-00767 Buffer overflow in login in various System V based operating systems allows remote… CVSS 2.0HIGH 10.0
TI-2003-00642 The prescan function in Sendmail 8.12.9 allows remote attackers to execute arbitrary code… CVSS 2.0HIGH 10.0
TI-2009-03523 Stack-based buffer overflow in libcsa.a (aka the calendar daemon library) in IBM AIX 5.x… CVSS 2.0HIGH 10.0
TI-1999-00045 Buffer overflow of rlogin program using TERM environmental variable. CVSS 2.0HIGH 10.0
TI-2001-00539 Buffer overflow in BSD-based telnetd telnet daemon on various operating systems allows… CVSS 2.0HIGH 10.0
TI-1999-00009 Inverse query buffer overflow in BIND 4.9 and BIND 8 Releases. CVSS 2.0HIGH 10.0

See all 544 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences