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CVE-2026-6473 - Vulnerability Analysis

HighCVSS: 8.8

Last Updated: May 14, 2026

PostgreSQL - Integer Overflow

Published: May 14, 2026Updated: May 14, 2026Remote Exploitable

Overview

PostgreSQL < 18.4, 17.10, 16.14, 15.18, and 14.23 contains an integer overflow caused by undersized memory allocation in multiple server features, letting unprivileged database users execute arbitrary code as the OS user, exploit requires unprivileged database access.

Severity & Score

Severity: High
CVSS Score: 8.8
EPSS Score: 0.0%(Probability of exploitation in next 30 days)

Impact

Unprivileged users can execute arbitrary code as the database OS user, potentially leading to full system compromise.

Mitigation

Upgrade to versions 18.4, 17.10, 16.14, 15.18, 14.23 or later.

Social Media Activity(2 posts)

TheHackerWire
TheHackerWire
@thehackerwire
May 14, 2026

🟠 CVE-2026-6473 - High (8.8) 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 databa... šŸ”— https://www.thehackerwire.com/vulnerability/CVE-2026-6473/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

View original post
TheHackerWire
TheHackerWire
@thehackerwire
May 14, 2026

🟠 CVE-2026-6473 - High (8.8) 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 databa... šŸ”— https://www.thehackerwire.com/vulnerability/CVE-2026-6473/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

View original post

Details

CVE ID
CVE-2026-6473
Severity
High
CVSS Score
8.8
Type
integer_overflow
Status
unconfirmed
EPSS
0.0%
Social Posts
2

CWE

  • CWE-190

CVSS Metrics

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

EPSS Score

0.0%Probability of exploitation in the next 30 days