CVE-2026-16885
Received Received - Intake

Stack Buffer Overflow in IBM AIX and PowerVM VIOS

Publication date: 2026-08-19

Last updated on: 2026-08-19

Assigner: IBM Corporation

Description
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 stack buffer overflow.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-08-19
Last Modified
2026-08-19
Generated
2026-08-20
AI Q&A
2026-08-20
EPSS Evaluated
N/A
NVD
CVE-2026-16885
EUVD
EUVD-2026-62864

Affected Vendors & Products

Showing 6 associated CPEs
Vendor Product Version / Range
ibm aix 7.2
ibm aix 7.3
ibm powervm_vios 4.1
ibm aix From 7.2 (inc)
ibm aix From 7.3 (inc)
ibm powervm_vios From 4.1 (inc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-121 A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This is a stack buffer overflow vulnerability in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1. A remote attacker could exploit this to execute arbitrary code on the affected system.

Impact Analysis

An attacker could gain full control of the system, allowing them to install malware, steal data, or disrupt operations. This could lead to unauthorized access, data breaches, or system crashes.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, which may violate compliance requirements under GDPR, HIPAA, or other regulations. Organizations may face legal penalties, fines, or reputational damage.

Mitigation Strategies

Apply IBM's official security patches or updates for AIX 7.2, 7.3, and PowerVM VIOS 4.1 immediately. Isolate affected systems from untrusted networks until patched. Monitor IBM's security advisories for additional guidance.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-16885. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart