How severe is CVE-2012-1942?

CVE-2012-1942 has a CVSS 2.0 base score of 7.2, rated high severity.

Is CVE-2012-1942 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-1942?

CVE-2012-1942 primarily affects Mozilla Firefox. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-1942?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2012-1942 published?

CVE-2012-1942 was published on 2012-06-05 and last updated on 2026-06-16.

CVE-2012-1942

CVE-2012-1942 is a high-severity vulnerability in Mozilla Firefox with a CVSS 2.0 base score of 7.2. 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-264.

Key facts

Severity: High (CVSS 2.0 base score 7.2)
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Mozilla Firefox
Published: 2012-06-05
Last modified: 2026-06-16

Description

The Mozilla Updater and Windows Updater Service in Mozilla Firefox 12.0, Thunderbird 12.0, and SeaMonkey 2.9 on Windows allow local users to gain privileges by loading a DLL file in a privileged context.

Frequently asked questions

What is CVE-2012-1942?: The Mozilla Updater and Windows Updater Service in Mozilla Firefox 12.0, Thunderbird 12.0, and SeaMonkey 2.9 on Windows allow local users to gain privileges by loading a DLL file in a privileged context.
How severe is CVE-2012-1942?: CVE-2012-1942 has a CVSS 2.0 base score of 7.2, rated high severity.
Is CVE-2012-1942 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-1942?: CVE-2012-1942 primarily affects Mozilla Firefox. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-1942?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2012-1942 published?: CVE-2012-1942 was published on 2012-06-05 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:mozilla:firefox:12.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:2.9:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:12.0:*:*:*:*:*:*:*

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