What is CVE-2002-1657?

CVE-2002-1657 is a high-severity vulnerability in PostgreSQL, classified under Use of Password Hash With Insufficient Computational Effort. CVSS score: 7.5/10. Published 2002-12-31.

How severe is CVE-2002-1657?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in PostgreSQL

CVE-2002-1657

PostgreSQL uses the username for a salt when generating passwords, which makes it easier for remote attackers to guess passwords via a brute force attack.

Published 2002-12-31 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.013 (68.7th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 68.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

PostgreSQL — versions 7.3.19

Weakness classification (CWE)

CWE-916 — Use of Password Hash With Insufficient Computational Effort

References

exchange.xforce.ibmcloud.com/vulnerabilities/20215 (VDB Entry, vdb-entry, Broken Link)
marc.info/ (mailing-list, Mailing List)
marc.info/ (mailing-list, Mailing List)
archives.postgresql.org/pgsql-admin/2002-08/msg00253.php (mailing-list, Mailing List)

Frequently asked questions

What is CVE-2002-1657?: CVE-2002-1657 is a high-severity vulnerability in PostgreSQL, classified under Use of Password Hash With Insufficient Computational Effort. CVSS score: 7.5/10. Published 2002-12-31.
How severe is CVE-2002-1657?: High severity. CVSS v3 base score is 7.5 out of 10.