CVE-2009-2408 - CVE House
Back to Database
Status published Medium CVE-2009-2408

Mozilla Network Security Services (NSS) before 3.12.3, Firefox before 3.0.13,...

Vulnerability Description

Mozilla Network Security Services (NSS) before 3.12.3, Firefox before 3.0.13, Thunderbird before 2.0.0.23, and SeaMonkey before 1.1.18 do not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority. NOTE: this was originally reported for Firefox before 3.5.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2009-2408

Credits & Attribution

No credits recorded in the NVD database.

References

More from mozilla

View All →
CVE-2025-66453
Rhino vulnerable high CPU usage and potential DoS when passing specific numbers to toFixed() function
Medium 5.5
CVE-2022-29167
ReDoS vulnerability in header parsing in hawk
High 7.4
CVE-2021-21354
Open redirect in pollbot
High 7.4
CVE-2020-15660
Missing checks on Content-Type headers in geckodriver before 0.27.0 could...
High 8.8
CVE-2018-7753
An issue was discovered in Bleach 2.1.x before 2.1.3. Attributes...
Critical 9.8

Affected Vendor

Affected Software

firefox, network security services, seamonkey, thunderbird, opensuse, linux enterprise, linux enterprise server, debian linux, ubuntu linux
Vulnerable Versions:
0, 10.3, 10.0, 11.0, 9, 5.0, 8.04, 8.10, 9.04

Timeline

Official Publish: July 30th, 2009
Last Modified: August 7th, 2024
Added to House: July 19th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.