CVE-2012-1955

CVE-2012-1955 is a medium-severity vulnerability in Mozilla Firefox with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Mozilla Firefox 4.x through 13.0, Firefox ESR 10.x before 10.0.6, Thunderbird 5.0 through 13.0, Thunderbird ESR 10.x before 10.0.6, and SeaMonkey before 2.11 allow remote attackers to spoof the address bar via vectors involving history.forward and history.back calls.

Frequently asked questions

What is CVE-2012-1955?
Mozilla Firefox 4.x through 13.0, Firefox ESR 10.x before 10.0.6, Thunderbird 5.0 through 13.0, Thunderbird ESR 10.x before 10.0.6, and SeaMonkey before 2.11 allow remote attackers to spoof the address bar via vectors involving history.forward and history.back calls.
How severe is CVE-2012-1955?
CVE-2012-1955 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2012-1955 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-1955?
CVE-2012-1955 primarily affects Mozilla Firefox. In total, 127 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-1955?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-1955 published?
CVE-2012-1955 was published on 2012-07-18 and last updated on 2026-06-16.

References

Affected products (127)

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