How severe is CVE-2012-4198?

CVE-2012-4198 has a CVSS 2.0 base score of 4.0, rated medium severity.

Is CVE-2012-4198 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-4198?

CVE-2012-4198 primarily affects Mozilla Bugzilla. In total, 29 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-4198?

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

When was CVE-2012-4198 published?

CVE-2012-4198 was published on 2012-11-16 and last updated on 2026-06-16.

CVE-2012-4198

CVE-2012-4198 is a medium-severity vulnerability in Mozilla Bugzilla with a CVSS 2.0 base score of 4.0. 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-200.

Key facts

Severity: Medium (CVSS 2.0 base score 4.0)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Mozilla Bugzilla
Published: 2012-11-16
Last modified: 2026-06-16

Description

The User.get method in Bugzilla/WebService/User.pm in Bugzilla 3.7.x and 4.0.x before 4.0.9, 4.1.x and 4.2.x before 4.2.4, and 4.3.x and 4.4.x before 4.4rc1 has a different outcome for a groups request depending on whether a group exists, which allows remote authenticated users to discover private group names by observing whether a call throws an error.

Frequently asked questions

What is CVE-2012-4198?: The User.get method in Bugzilla/WebService/User.pm in Bugzilla 3.7.x and 4.0.x before 4.0.9, 4.1.x and 4.2.x before 4.2.4, and 4.3.x and 4.4.x before 4.4rc1 has a different outcome for a groups request depending on whether a group exists, which allows remote authenticated users to discover private group names by observing whether a call throws an error.
How severe is CVE-2012-4198?: CVE-2012-4198 has a CVSS 2.0 base score of 4.0, rated medium severity.
Is CVE-2012-4198 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-4198?: CVE-2012-4198 primarily affects Mozilla Bugzilla. In total, 29 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-4198?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-4198 published?: CVE-2012-4198 was published on 2012-11-16 and last updated on 2026-06-16.

References

Affected products (29)

cpe:2.3:a:mozilla:bugzilla:3.7:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:3.7.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:3.7.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:3.7.3:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.0:rc1:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.0:rc2:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.0.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.0.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.0.3:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.0.4:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.0.5:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.0.6:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.0.7:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.0.8:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.1.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.1.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.1.3:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.2:rc1:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.2:rc2:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.2.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.2.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.2.3:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.3:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.3.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.3.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:bugzilla:4.3.3:*:*:*:*:*:*:*

More vulnerabilities in Mozilla Bugzilla

CVE-2004-0769 — Critical (CVSS 10.0): Buffer overflow in LHA allows remote attackers to execute arbitrary code via long pathnames in LHarc format 2 headers…
CVE-2003-1043 — Critical (CVSS 10.0): SQL injection vulnerability in Bugzilla 2.16.3 and earlier, and 2.17.1 through 2.17.4, allows remote authenticated…
CVE-2003-1042 — Critical (CVSS 10.0): SQL injection vulnerability in collectstats.pl for Bugzilla 2.16.3 and earlier allows remote authenticated users with…
CVE-2002-0007 — Critical (CVSS 10.0): CGI.pl in Bugzilla before 2.14.1, when using LDAP, allows remote attackers to obtain an anonymous bind to the LDAP…
CVE-2018-5123 — High (CVSS 8.8): A third party website can access information available to a user with access to a restricted bug entry using the image…
CVE-2015-4499 — High (CVSS 7.5): Util.pm in Bugzilla 2.x, 3.x, and 4.x before 4.2.15, 4.3.x and 4.4.x before 4.4.10, and 5.x before 5.0.1 mishandles…

All CVEs affecting Mozilla Bugzilla →

Other CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities

CVE-2026-27604 — Critical (CVSS 10.0): FOSSBilling is a free, open-source billing and client management system. Starting in version 0.5.4 and prior to version…
CVE-2026-40965 — Critical (CVSS 10.0): Cloud Foundry UAA versions v76.12.0 through v78.12.0 are vulnerable to a private key exposure. The server contains a…
CVE-2026-42826 — Critical (CVSS 10.0): Exposure of sensitive information to an unauthorized actor in Azure DevOps allows an unauthorized attacker to disclose…
CVE-2025-29270 — Critical (CVSS 10.0): Incorrect access control in the realtime.cgi endpoint of Deep Sea Electronics devices DSE855 v1.1.0 to v1.1.26 allows…
CVE-2025-61481 — Critical (CVSS 10.0): An issue in MikroTik RouterOS v.7.14.2 and SwOS v.2.18 exposes the WebFig management interface over cleartext HTTP by…
CVE-2025-53624 — Critical (CVSS 10.0): The Docusaurus gists plugin adds a page to your Docusaurus instance, displaying all public gists of a GitHub user.…

Browse all CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities →