CVE-2025-12818
MEDIUM EPSS 21.7%
Published Nov 13, 20257mo ago · Modified Jun 17, 20262w ago
5.9 CVSS 3.1
Published Nov 13, 2025 7mo ago
Last Modified Jun 17, 2026 2w ago
Description
Integer wraparound in multiple PostgreSQL libpq client library functions allows an application input provider or network peer to cause libpq to undersize an allocation and write out-of-bounds by hundreds of megabytes. This results in a segmentation fault for the application using libpq. Versions before PostgreSQL 18.1, 17.7, 16.11, 15.15, 14.20, and 13.23 are affected.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
21.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-190 Integer Overflow or Wraparound Numeric Error
References 1
- postgresql.org https://www.postgresql.org/support/security/CVE-2025-12818/
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.