Code execution via overflowing array dimensions
Published Dec 10, 2023 · Updated Mar 11, 2026
Integer overflow in PostgreSQL 11 through 16 allows remote authenticated users to execute code through crafted SQL array updates. array_set_element and related functions compute enlarged array bounds without overflow detection, allowing invalid dimensions to pass later checks. Database access is required; successful exploitation permits arbitrary memory writes and broad reads of server memory.
Summary
What happened
Integer overflow in PostgreSQL 11 through 16 allows remote authenticated users to execute code through crafted SQL array updates. array_set_element and related functions compute enlarged array bounds without overflow detection, allowing invalid dimensions to pass later checks. Database access is required; successful exploitation permits arbitrary memory writes and broad reads of server memory.
The record
- CVE
- CVE-2023-5869
- Published
- Dec 10, 2023
- Updated
- Mar 11, 2026
- Vendor
- Red Hat
- Product
- Red Hat Advanced Cluster Security for Kubernetes
- Classifications
- CWE-190, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 10, 2023CVE publishedPublication date reported by the CVE source.
- Mar 11, 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?
Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.
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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