CVE-2014-8643

CVE-2014-8643 is a high-severity vulnerability in Mozilla Firefox with a CVSS 2.0 base score of 7.1. 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

Description

Mozilla Firefox before 35.0 on Windows allows remote attackers to bypass the Gecko Media Plugin (GMP) sandbox protection mechanism by leveraging access to the GMP process, as demonstrated by the OpenH264 plugin's process.

Frequently asked questions

What is CVE-2014-8643?
Mozilla Firefox before 35.0 on Windows allows remote attackers to bypass the Gecko Media Plugin (GMP) sandbox protection mechanism by leveraging access to the GMP process, as demonstrated by the OpenH264 plugin's process.
How severe is CVE-2014-8643?
CVE-2014-8643 has a CVSS 2.0 base score of 7.1, rated high severity.
Is CVE-2014-8643 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-8643?
CVE-2014-8643 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-2014-8643?
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-2014-8643 published?
CVE-2014-8643 was published on 2015-01-14 and last updated on 2026-06-17.

References

Affected products (3)

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