QwikSec

Security Database

CVE

CWE

Training

CVE Database
/

CVE-2026-6473

Back to search

CVE-2026-6473

Published: May 14, 2026

Modified: May 15, 2026

PUBLISHED

CVSS v3.1

8.8

HIGH

Description

Integer wraparound in multiple PostgreSQL server features allows an unprivileged database user to cause the server to undersize an allocation and write out-of-bounds. This may execute arbitrary code as the operating system user running the database. In applications that pass gigabyte-scale user inputs to the relevant database functions, the application input provider may achieve a segmentation fault. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

VendorProductVersions

n/a

PostgreSQL

affected
18 - < 18.4
affected
17 - < 17.10
affected
16 - < 16.14
affected
15 - < 15.18
affected
0 - < 14.23

Weaknesses (CWE)

CWE-190

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Start Training

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.

Scan Now