Authenticated code execution via stack buffer overflow
Published Aug 20, 2026 · Updated Aug 25, 2026
Stack-based buffer overflow in IBM AIX 7.2 and 7.3 and PowerVM VIOS 4.1 allows remote authenticated users to execute arbitrary code. IBM has not disclosed the vulnerable component, the accepted input, or the operation that overruns the stack buffer. Exploitation requires authenticated network access and conditions that make attack complexity high; success executes attacker-controlled code.
Summary
What happened
Stack-based buffer overflow in IBM AIX 7.2 and 7.3 and PowerVM VIOS 4.1 allows remote authenticated users to execute arbitrary code. IBM has not disclosed the vulnerable component, the accepted input, or the operation that overruns the stack buffer. Exploitation requires authenticated network access and conditions that make attack complexity high; success executes attacker-controlled code.
The record
- CVE
- CVE-2026-17168
- Published
- Aug 20, 2026
- Updated
- Aug 25, 2026
- Vendor
- IBM
- Product
- AIX
- Classifications
- CWE-787, T1210
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 20, 2026CVE publishedPublication date reported by the CVE source.
- Aug 25, 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.
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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