CVE-2011-2669

Name: CVE-2011-2669
Creator: NVD / NIST
Published: 2020-01-21T15:15:11.88+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.56%

Last modified Jun 16, 2026

CVE-2011-2669 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Mozilla Firefox prior to 3.6 has a DoS vulnerability due to an issue in the validation of certificates.. EPSS estimates a 0.56% chance of exploitation in the next 30 days.

Description

Mozilla Firefox prior to 3.6 has a DoS vulnerability due to an issue in the validation of certificates.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.56%

42.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-295

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 3.6

References

http://jvn.jp/en/jp/JVN70984231/index.htmlThird Party Advisory
http://jvn.jp/en/jp/JVN70984231/index.htmlThird Party Advisory

Timeline

Published: Jan 21, 2020
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2011-2669?

Mozilla Firefox prior to 3.6 has a DoS vulnerability due to an issue in the validation of certificates.

How severe is CVE-2011-2669?

CVE-2011-2669 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.56% probability of exploitation in the next 30 days.

How do I fix CVE-2011-2669?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-2669?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST