CVE-2011-2978

Bugzilla 2.16rc1 through 2.22.7, 3.0.x through 3.3.x, 3.4.x before 3.4.12, 3.5.x, 3.6.x before 3.6.6, 3.7.x, 4.0.x before 4.0.2, and 4.1.x before 4.1.3 does not prevent changes to the confirmation e-mail address (aka old_email field) for e-mail change notifications, which makes it easier for remote attackers to perform arbitrary address changes by leveraging an unattended workstation.

Published: 2011-08-09 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-2978 is rated Moderate Risk (43.3/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.65%). 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-2011-2978

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 2025-03-30 1.28% 0.65% -0.62%
2 2025-03-29 0.65% 1.28% +0.62%
3 2025-03-17 — 0.65% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-2978

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:N/I:P/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:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2011-2978

OS Trackers for CVE-2011-2978

vendor priority summary link
gentoo normal CVE-2011-2978: 1 GLSA(s) (201110-03), 1 atom(s) (www-apps/bugzilla); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2011-2978
ubuntu medium CVE-2011-2978 medium priority: Ubuntu including 1 source packages (bugzilla), 10 status rows across 10 suites (hardy, lucid, maverick, natty, oneiric, precise, quantal, raring, saucy, upstream): DNE 4, ignored 4, not-affected 1, released 1. https://ubuntu.com/security/CVE-2011-2978

Affected software / configurations for CVE-2011-2978

Vendor Product Version Raw CPE
mozilla bugzilla 2.16 cpe:2.3:a:mozilla:bugzilla:2.16:*:*:*:*:*:*:*
mozilla bugzilla 2.16 cpe:2.3:a:mozilla:bugzilla:2.16:rc1:*:*:*:*:*:*
mozilla bugzilla 2.16.1 cpe:2.3:a:mozilla:bugzilla:2.16.1:*:*:*:*:*:*:*
mozilla bugzilla 2.16.2 cpe:2.3:a:mozilla:bugzilla:2.16.2:*:*:*:*:*:*:*
mozilla bugzilla 2.16.3 cpe:2.3:a:mozilla:bugzilla:2.16.3:*:*:*:*:*:*:*
mozilla bugzilla 2.16.4 cpe:2.3:a:mozilla:bugzilla:2.16.4:*:*:*:*:*:*:*
mozilla bugzilla 2.16.5 cpe:2.3:a:mozilla:bugzilla:2.16.5:*:*:*:*:*:*:*
mozilla bugzilla 2.16.6 cpe:2.3:a:mozilla:bugzilla:2.16.6:*:*:*:*:*:*:*
mozilla bugzilla 2.16.7 cpe:2.3:a:mozilla:bugzilla:2.16.7:*:*:*:*:*:*:*
mozilla bugzilla 2.16.8 cpe:2.3:a:mozilla:bugzilla:2.16.8:*:*:*:*:*:*:*
mozilla bugzilla 2.16.9 cpe:2.3:a:mozilla:bugzilla:2.16.9:*:*:*:*:*:*:*
mozilla bugzilla 2.16.10 cpe:2.3:a:mozilla:bugzilla:2.16.10:*:*:*:*:*:*:*
mozilla bugzilla 2.16.11 cpe:2.3:a:mozilla:bugzilla:2.16.11:*:*:*:*:*:*:*
mozilla bugzilla 2.17 cpe:2.3:a:mozilla:bugzilla:2.17:*:*:*:*:*:*:*
mozilla bugzilla 2.17.1 cpe:2.3:a:mozilla:bugzilla:2.17.1:*:*:*:*:*:*:*
mozilla bugzilla 2.17.3 cpe:2.3:a:mozilla:bugzilla:2.17.3:*:*:*:*:*:*:*
mozilla bugzilla 2.17.4 cpe:2.3:a:mozilla:bugzilla:2.17.4:*:*:*:*:*:*:*
mozilla bugzilla 2.17.5 cpe:2.3:a:mozilla:bugzilla:2.17.5:*:*:*:*:*:*:*
mozilla bugzilla 2.17.6 cpe:2.3:a:mozilla:bugzilla:2.17.6:*:*:*:*:*:*:*
mozilla bugzilla 2.17.7 cpe:2.3:a:mozilla:bugzilla:2.17.7:*:*:*:*:*:*:*
mozilla bugzilla 2.18 cpe:2.3:a:mozilla:bugzilla:2.18:*:*:*:*:*:*:*
mozilla bugzilla 2.18 cpe:2.3:a:mozilla:bugzilla:2.18:rc1:*:*:*:*:*:*
mozilla bugzilla 2.18 cpe:2.3:a:mozilla:bugzilla:2.18:rc2:*:*:*:*:*:*
mozilla bugzilla 2.18 cpe:2.3:a:mozilla:bugzilla:2.18:rc3:*:*:*:*:*:*
mozilla bugzilla 2.18.1 cpe:2.3:a:mozilla:bugzilla:2.18.1:*:*:*:*:*:*:*
mozilla bugzilla 2.18.2 cpe:2.3:a:mozilla:bugzilla:2.18.2:*:*:*:*:*:*:*
mozilla bugzilla 2.18.3 cpe:2.3:a:mozilla:bugzilla:2.18.3:*:*:*:*:*:*:*
mozilla bugzilla 2.18.4 cpe:2.3:a:mozilla:bugzilla:2.18.4:*:*:*:*:*:*:*
mozilla bugzilla 2.18.5 cpe:2.3:a:mozilla:bugzilla:2.18.5:*:*:*:*:*:*:*
mozilla bugzilla 2.18.6 cpe:2.3:a:mozilla:bugzilla:2.18.6:*:*:*:*:*:*:*
mozilla bugzilla 2.19 cpe:2.3:a:mozilla:bugzilla:2.19:*:*:*:*:*:*:*
mozilla bugzilla 2.19.1 cpe:2.3:a:mozilla:bugzilla:2.19.1:*:*:*:*:*:*:*
mozilla bugzilla 2.19.2 cpe:2.3:a:mozilla:bugzilla:2.19.2:*:*:*:*:*:*:*
mozilla bugzilla 2.19.3 cpe:2.3:a:mozilla:bugzilla:2.19.3:*:*:*:*:*:*:*
mozilla bugzilla 2.20 cpe:2.3:a:mozilla:bugzilla:2.20:*:*:*:*:*:*:*
mozilla bugzilla 2.20 cpe:2.3:a:mozilla:bugzilla:2.20:rc1:*:*:*:*:*:*
mozilla bugzilla 2.20 cpe:2.3:a:mozilla:bugzilla:2.20:rc2:*:*:*:*:*:*
mozilla bugzilla 2.20.1 cpe:2.3:a:mozilla:bugzilla:2.20.1:*:*:*:*:*:*:*
mozilla bugzilla 2.20.2 cpe:2.3:a:mozilla:bugzilla:2.20.2:*:*:*:*:*:*:*
mozilla bugzilla 2.20.3 cpe:2.3:a:mozilla:bugzilla:2.20.3:*:*:*:*:*:*:*
mozilla bugzilla 2.20.4 cpe:2.3:a:mozilla:bugzilla:2.20.4:*:*:*:*:*:*:*
mozilla bugzilla 2.20.5 cpe:2.3:a:mozilla:bugzilla:2.20.5:*:*:*:*:*:*:*
mozilla bugzilla 2.20.6 cpe:2.3:a:mozilla:bugzilla:2.20.6:*:*:*:*:*:*:*
mozilla bugzilla 2.20.7 cpe:2.3:a:mozilla:bugzilla:2.20.7:*:*:*:*:*:*:*
mozilla bugzilla 2.21 cpe:2.3:a:mozilla:bugzilla:2.21:*:*:*:*:*:*:*
mozilla bugzilla 2.21.1 cpe:2.3:a:mozilla:bugzilla:2.21.1:*:*:*:*:*:*:*
mozilla bugzilla 2.21.2 cpe:2.3:a:mozilla:bugzilla:2.21.2:*:*:*:*:*:*:*
mozilla bugzilla 2.22 cpe:2.3:a:mozilla:bugzilla:2.22:*:*:*:*:*:*:*
mozilla bugzilla 2.22 cpe:2.3:a:mozilla:bugzilla:2.22:rc1:*:*:*:*:*:*
mozilla bugzilla 2.22.1 cpe:2.3:a:mozilla:bugzilla:2.22.1:*:*:*:*:*:*:*
mozilla bugzilla 2.22.2 cpe:2.3:a:mozilla:bugzilla:2.22.2:*:*:*:*:*:*:*
mozilla bugzilla 2.22.3 cpe:2.3:a:mozilla:bugzilla:2.22.3:*:*:*:*:*:*:*
mozilla bugzilla 2.22.4 cpe:2.3:a:mozilla:bugzilla:2.22.4:*:*:*:*:*:*:*
mozilla bugzilla 2.22.5 cpe:2.3:a:mozilla:bugzilla:2.22.5:*:*:*:*:*:*:*
mozilla bugzilla 2.22.6 cpe:2.3:a:mozilla:bugzilla:2.22.6:*:*:*:*:*:*:*
mozilla bugzilla 2.22.7 cpe:2.3:a:mozilla:bugzilla:2.22.7:*:*:*:*:*:*:*
mozilla bugzilla 3.0 cpe:2.3:a:mozilla:bugzilla:3.0:*:*:*:*:*:*:*
mozilla bugzilla 3.0 cpe:2.3:a:mozilla:bugzilla:3.0:rc1:*:*:*:*:*:*
mozilla bugzilla 3.0.0 cpe:2.3:a:mozilla:bugzilla:3.0.0:*:*:*:*:*:*:*
mozilla bugzilla 3.0.1 cpe:2.3:a:mozilla:bugzilla:3.0.1:*:*:*:*:*:*:*
mozilla bugzilla 3.0.2 cpe:2.3:a:mozilla:bugzilla:3.0.2:*:*:*:*:*:*:*
mozilla bugzilla 3.0.3 cpe:2.3:a:mozilla:bugzilla:3.0.3:*:*:*:*:*:*:*
mozilla bugzilla 3.0.4 cpe:2.3:a:mozilla:bugzilla:3.0.4:*:*:*:*:*:*:*
mozilla bugzilla 3.0.5 cpe:2.3:a:mozilla:bugzilla:3.0.5:*:*:*:*:*:*:*
mozilla bugzilla 3.0.6 cpe:2.3:a:mozilla:bugzilla:3.0.6:*:*:*:*:*:*:*
mozilla bugzilla 3.0.7 cpe:2.3:a:mozilla:bugzilla:3.0.7:*:*:*:*:*:*:*
mozilla bugzilla 3.0.8 cpe:2.3:a:mozilla:bugzilla:3.0.8:*:*:*:*:*:*:*
mozilla bugzilla 3.0.9 cpe:2.3:a:mozilla:bugzilla:3.0.9:*:*:*:*:*:*:*
mozilla bugzilla 3.0.10 cpe:2.3:a:mozilla:bugzilla:3.0.10:*:*:*:*:*:*:*
mozilla bugzilla 3.0.11 cpe:2.3:a:mozilla:bugzilla:3.0.11:*:*:*:*:*:*:*
mozilla bugzilla 3.1.0 cpe:2.3:a:mozilla:bugzilla:3.1.0:*:*:*:*:*:*:*
mozilla bugzilla 3.1.1 cpe:2.3:a:mozilla:bugzilla:3.1.1:*:*:*:*:*:*:*
mozilla bugzilla 3.1.2 cpe:2.3:a:mozilla:bugzilla:3.1.2:*:*:*:*:*:*:*
mozilla bugzilla 3.1.3 cpe:2.3:a:mozilla:bugzilla:3.1.3:*:*:*:*:*:*:*
mozilla bugzilla 3.1.4 cpe:2.3:a:mozilla:bugzilla:3.1.4:*:*:*:*:*:*:*
mozilla bugzilla 3.2 cpe:2.3:a:mozilla:bugzilla:3.2:*:*:*:*:*:*:*
mozilla bugzilla 3.2 cpe:2.3:a:mozilla:bugzilla:3.2:rc1:*:*:*:*:*:*
mozilla bugzilla 3.2 cpe:2.3:a:mozilla:bugzilla:3.2:rc2:*:*:*:*:*:*
mozilla bugzilla 3.2.1 cpe:2.3:a:mozilla:bugzilla:3.2.1:*:*:*:*:*:*:*
mozilla bugzilla 3.2.2 cpe:2.3:a:mozilla:bugzilla:3.2.2:*:*:*:*:*:*:*

References for CVE-2011-2978

cvelogic Threat Intelligence