Authenticated crash via out-of-bounds write
Published Oct 27, 2025 · Updated Oct 27, 2025
Out-of-bounds write in IBM Db2 High Performance Unload allows remote authenticated users to crash the program via network access. IBM has not published the affected component, attacker-controlled input, or operation that permits the write beyond classifying it as an out-of-bounds memory write. Access requires an authenticated low-privilege account; the reported consequence is a program crash, with no reported confidentiality or integrity impact.
Summary
What happened
Out-of-bounds write in IBM Db2 High Performance Unload allows remote authenticated users to crash the program via network access. IBM has not published the affected component, attacker-controlled input, or operation that permits the write beyond classifying it as an out-of-bounds memory write. Access requires an authenticated low-privilege account; the reported consequence is a program crash, with no reported confidentiality or integrity impact.
The record
- CVE
- CVE-2025-33133
- Published
- Oct 27, 2025
- Updated
- Oct 27, 2025
- Vendor
- IBM
- Product
- IBM Db2 High Performance Unload for z/OS
- Classifications
- CWE-787, T1499
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 27, 2025CVE publishedPublication date reported by the CVE source.
- Oct 27, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=5.1
- Affected versionversion=5.1.0.1
- Affected versionversion=6.1
- Affected versionversion=6.1.0.1
- Affected versionversion=6.1.0.2
- Affected versionversion=6.1.0.3
- Affected versionversion=6.5
- Affected versionversion=6.5.0.0 IF1
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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