Local denial of service via out-of-bounds write
Published Aug 20, 2026 · Updated Aug 20, 2026
Out-of-bounds write in IBM AIX 7.2 and 7.3 and PowerVM VIOS 4.1 allows local users to cause a denial of service. The affected bos.mp64 fileset performs an out-of-bounds memory write, but IBM has not disclosed the responsible routine, input, or bounds error. Low-privileged local access is required, and the reported consequence is limited to service interruption without confidentiality or integrity impact.
Summary
What happened
Out-of-bounds write in IBM AIX 7.2 and 7.3 and PowerVM VIOS 4.1 allows local users to cause a denial of service. The affected bos.mp64 fileset performs an out-of-bounds memory write, but IBM has not disclosed the responsible routine, input, or bounds error. Low-privileged local access is required, and the reported consequence is limited to service interruption without confidentiality or integrity impact.
The record
- CVE
- CVE-2026-17195
- Published
- Aug 20, 2026
- Updated
- Aug 20, 2026
- Vendor
- IBM
- Product
- AIX
- Classifications
- CWE-787, T1499
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 20, 2026CVE publishedPublication date reported by the CVE source.
- Aug 20, 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
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Attacks
What attackers are doing with it
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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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