CVE-2009-2471

CVE-2009-2471 is a critical-severity vulnerability in Mozilla Firefox with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

The setTimeout function in Mozilla Firefox before 3.0.12 does not properly preserve object wrapping, which allows remote attackers to execute arbitrary JavaScript with chrome privileges via a crafted call, related to XPCNativeWrapper.

Frequently asked questions

What is CVE-2009-2471?
The setTimeout function in Mozilla Firefox before 3.0.12 does not properly preserve object wrapping, which allows remote attackers to execute arbitrary JavaScript with chrome privileges via a crafted call, related to XPCNativeWrapper.
How severe is CVE-2009-2471?
CVE-2009-2471 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2009-2471 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-2471?
CVE-2009-2471 primarily affects Mozilla Firefox. In total, 95 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-2471?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2009-2471 published?
CVE-2009-2471 was published on 2009-07-22 and last updated on 2026-06-16.

References

Affected products (95)

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