CVE-2025-12818 – PostgreSQL libpq undersizes allocations, via integer wraparound

CVE ID : CVE-2025-12818

Published : 13. November 2025 13:15 | 1 Stunde, 43 Minuten 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.

Severity: 5.9 | MEDIUM

Visit the link for more details, such as CVSS details, affected products, timeline, and more…