CVE-2006-6502

What it is

Use-after-free vulnerability in the LiveConnect bridge code for Mozilla Firefox 2.x before 2.0.0.1, 1.5.x before 1.5.0.9, Thunderbird before 1.5.0.9, and SeaMonkey before 1.0.7 allows remote attackers to cause a denial of service (crash) via unknown vectors.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of service disruption.

Exploit odds

2.4% chance of exploitation in the next 30 days (EPSS).

Fix

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

Timeline

1. 2006-12-20 01:28 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 22:33 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 2.4% in the next 30 days (EPSS).
• Severity: 7.1 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2006-12-20 01:28 UTC

Last modified

2026-06-16 22:33 UTC

Exploit probability

2.4% · EPSS, next 30 days

Record status

Modified

Affected

• Mozilla Firefox 1.5
• Mozilla Firefox 1.5.0.1
• Mozilla Firefox 1.5.0.2
• Mozilla Firefox 1.5.0.3
• Mozilla Firefox 1.5.0.4
• Mozilla Firefox 1.5.0.5
• Mozilla Firefox 1.5.0.6
• Mozilla Firefox 1.5.0.7

Attack profile CVSS 2.0 · 7.1

Attack vector

Network

Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

Is it in your code?

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