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.

Published: 2009-09-15 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-3166 is rated Moderate Risk (42.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.16%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2009-3166

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.36% 1.16% +0.80%
2 2025-03-30 0.74% 0.36% -0.39%
3 2025-03-29 — 0.74% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-3166

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2009-3166

OS Trackers for CVE-2009-3166

vendor priority summary link
gentoo normal CVE-2009-3166: 1 GLSA(s) (201006-19), 1 atom(s) (www-apps/bugzilla); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2009-3166
ubuntu low CVE-2009-3166 low priority: Ubuntu including 1 source packages (bugzilla), 5 status rows across 5 suites (dapper, hardy, intrepid, jaunty, upstream): not-affected 4, pending 1. https://ubuntu.com/security/CVE-2009-3166

Affected software / configurations for CVE-2009-3166

Vendor Product Version Raw CPE
mozilla bugzilla 3.4 cpe:2.3:a:mozilla:bugzilla:3.4:*:*:*:*:*:*:*
mozilla bugzilla 3.4 cpe:2.3:a:mozilla:bugzilla:3.4:rc1:*:*:*:*:*:*
mozilla bugzilla 3.4.1 cpe:2.3:a:mozilla:bugzilla:3.4.1:*:*:*:*:*:*:*

References for CVE-2009-3166

cvelogic Threat Intelligence