How severe is CVE-2009-3166?

CVE-2009-3166 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2009-3166 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-3166?

CVE-2009-3166 primarily affects Mozilla Bugzilla. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-3166?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2009-3166 published?

CVE-2009-3166 was published on 2009-09-15 and last updated on 2026-06-16.

CVE-2009-3166

CVE-2009-3166 is a medium-severity vulnerability in Mozilla Bugzilla with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-255.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-255
Affected product: Mozilla Bugzilla
Published: 2009-09-15
Last modified: 2026-06-16

Description

token.cgi in Bugzilla 3.4rc1 through 3.4.1 places a password in a URL at the beginning of a login session that occurs immediately after a password reset, which allows context-dependent attackers to discover passwords by reading (1) web-server access logs, (2) web-server Referer logs, or (3) the browser history.

Frequently asked questions

What is CVE-2009-3166?: token.cgi in Bugzilla 3.4rc1 through 3.4.1 places a password in a URL at the beginning of a login session that occurs immediately after a password reset, which allows context-dependent attackers to discover passwords by reading (1) web-server access logs, (2) web-server Referer logs, or (3) the browser history.
How severe is CVE-2009-3166?: CVE-2009-3166 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2009-3166 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-3166?: CVE-2009-3166 primarily affects Mozilla Bugzilla. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-3166?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-3166 published?: CVE-2009-3166 was published on 2009-09-15 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:mozilla:bugzilla:3.4:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:3.4:rc1:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:3.4.1:*:*:*:*:*:*:*

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