CVE-2011-2366

CVE-2011-2366 is a medium-severity vulnerability in Mozilla Gecko with a CVSS 2.0 base score of 4.3. 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-20.

Key facts

Description

Mozilla Gecko before 5.0, as used in Firefox before 5.0 and Thunderbird before 5.0, does not block use of a cross-domain image as a WebGL texture, which allows remote attackers to obtain approximate copies of arbitrary images via a timing attack involving a crafted WebGL fragment shader.

Frequently asked questions

What is CVE-2011-2366?
Mozilla Gecko before 5.0, as used in Firefox before 5.0 and Thunderbird before 5.0, does not block use of a cross-domain image as a WebGL texture, which allows remote attackers to obtain approximate copies of arbitrary images via a timing attack involving a crafted WebGL fragment shader.
How severe is CVE-2011-2366?
CVE-2011-2366 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2011-2366 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-2366?
CVE-2011-2366 primarily affects Mozilla Gecko. In total, 225 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-2366?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-2366 published?
CVE-2011-2366 was published on 2011-06-30 and last updated on 2026-06-16.

References

Affected products (225)

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