CVE-2011-2979

Exp

Bugzilla 4.1.x before 4.1.3 generates different responses for certain assignee queries depending on whether the group name is valid, which allows remote attackers to determine the existence of private group names via a custom search. NOTE: this vulnerability exists because of a CVE-2010-2756 regression.

Published: 2011-08-09 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-2979 is rated High Exploit Risk (64/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.07%). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.38% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2011-2979

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2011-2979

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 0.69% 2.07% +1.38%
2 2025-03-30 1.29% 0.69% -0.60%
3 2025-03-29 — 1.29% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-2979

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-2011-2979

OS Trackers for CVE-2011-2979

vendor priority summary link
gentoo normal CVE-2011-2979: 1 GLSA(s) (201110-03), 1 atom(s) (www-apps/bugzilla); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2011-2979
ubuntu low CVE-2011-2979 low priority: Ubuntu including 1 source packages (bugzilla), 5 status rows across 5 suites (hardy, lucid, maverick, natty, upstream): not-affected 4, released 1. https://ubuntu.com/security/CVE-2011-2979

Affected software / configurations for CVE-2011-2979

Vendor Product Version Raw CPE
mozilla bugzilla 4.1 cpe:2.3:a:mozilla:bugzilla:4.1:*:*:*:*:*:*:*
mozilla bugzilla 4.1.1 cpe:2.3:a:mozilla:bugzilla:4.1.1:*:*:*:*:*:*:*
mozilla bugzilla 4.1.2 cpe:2.3:a:mozilla:bugzilla:4.1.2:*:*:*:*:*:*:*

References for CVE-2011-2979

cvelogic Threat Intelligence