Sensitive-information disclosure via out-of-bounds read
Published Aug 12, 2026 · Updated Aug 12, 2026
An out-of-bounds read in the IBM Power operating system 7.3 through 7.6 allows remote authenticated users to obtain sensitive information. IBM has not disclosed the affected component, attacker-controlled input, or operation that reads beyond the intended boundary. A valid low-privilege account is required, and the reported consequence is disclosure without data modification or service interruption.
Summary
What happened
An out-of-bounds read in the IBM Power operating system 7.3 through 7.6 allows remote authenticated users to obtain sensitive information. IBM has not disclosed the affected component, attacker-controlled input, or operation that reads beyond the intended boundary. A valid low-privilege account is required, and the reported consequence is disclosure without data modification or service interruption.
The record
- CVE
- CVE-2026-16863
- Published
- Aug 12, 2026
- Updated
- Aug 12, 2026
- Vendor
- IBM
- Product
- IBM i
- Classifications
- CWE-125
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 12, 2026CVE publishedPublication date reported by the CVE source.
- Aug 12, 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=7.3
- Affected versionversion=7.4
- Affected versionversion=7.5
- Affected versionversion=7.6
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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