CVE-2007-6067

What it is

Algorithmic complexity vulnerability in the regular expression parser in TCL before 8.4.17, as used in PostgreSQL 8.2 before 8.2.6, 8.1 before 8.1.11, 8.0 before 8.0.15, and 7.4 before 7.4.19, allows remote authenticated users to cause a denial of service (memory consumption) via a crafted "complex" regular expression with doubly-nested states.

At a glance

Exploitability

Can be exploited over the network with a login. High risk of service disruption.

Exploit odds

3.9% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2008-01-09 21:46 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 22:47 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 3.9% in the next 30 days (EPSS).
• Severity: 6.8 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2008-01-09 21:46 UTC

Last modified

2026-06-16 22:47 UTC

Exploit probability

3.9% · EPSS, next 30 days

Weakness

CWE-189

Record status

Modified

Affected

• PostgreSQL 7.3
• PostgreSQL 7.3.1
• PostgreSQL 7.3.2
• PostgreSQL 7.3.3
• PostgreSQL 7.3.4
• PostgreSQL 7.3.6
• PostgreSQL 7.3.8
• PostgreSQL 7.3.9

Attack profile CVSS 2.0 · 6.8

Attack vector

Network

Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Complete

Is it in your code?

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