CVE•Published 2026-05-14•Modified 2026-05-18•1 article on news•6 live references•NVD data

CVE-2026-6473Postgresql · Postgresql

Vulnerability data via NVD (ingested)

CVSS v3.1

8.8

HIGH

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

EPSS percentile

—

Weaknesses (CWE)

CWE-190Integer Overflow or Wraparound

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.

Timeline

Published 2026-05-14

Modified 2026-05-18

External references

NVD MITRE Exploit-DB GitHub PoC Sploitus VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-6473

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Postgresql Postgresql"

All exposed Postgresql Postgresql instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Postgresql"

HTTP body or banner mentions "Postgresql" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-6473