Local code execution via out-of-bounds write
Published Aug 19, 2026 · Updated Aug 21, 2026
Out-of-bounds write in IBM AIX 7.2 and 7.3 and PowerVM VIOS 4.1 allows local users with high privileges to execute arbitrary code. IBM has not disclosed the affected component, input, or memory operation beyond stating that an out-of-bounds write occurs. Exploitation requires high local privileges and can compromise the confidentiality, integrity, and availability of the affected system.
Summary
What happened
Out-of-bounds write in IBM AIX 7.2 and 7.3 and PowerVM VIOS 4.1 allows local users with high privileges to execute arbitrary code. IBM has not disclosed the affected component, input, or memory operation beyond stating that an out-of-bounds write occurs. Exploitation requires high local privileges and can compromise the confidentiality, integrity, and availability of the affected system.
The record
- CVE
- CVE-2026-16914
- Published
- Aug 19, 2026
- Updated
- Aug 21, 2026
- Vendor
- IBM
- Product
- AIX
- Classifications
- CWE-787
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Aug 19, 2026CVE publishedPublication date reported by the CVE source.
- Aug 21, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=7.2
- Affected versionversion=7.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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