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TI-2026-14021 Aliases CVE-2026-16845GHSA-7c39-w5pm-p52w

Vulnerabilities in IBM AIX and PowerVM VIOS

Priority MEDIUM 50CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
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 · CNA. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to execute arbitrary code due to a heap buffer overflow.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00802 56th 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
Yes
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
IBMAIX7.2; 7.3—No fix listedCNA
IBMPowerVM VIOS4.1—No fix listedCNA
  • 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

CPEVersionsRoleVendor
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 – 7.3.4.1VulnerableIBM
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 4.1.2.20VulnerableIBM
  • 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
  • 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

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 ·

    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

  1. 2026-10-02 Threatist record created from CVE-2026-16845
  2. 2026-10-03 Alias added: GHSA-7c39-w5pm-p52w

References

Patch 1

  • 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