How severe is CVE-2011-3649?

CVE-2011-3649 has a CVSS 2.0 base score of 2.6, rated low severity.

Is CVE-2011-3649 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-3649?

CVE-2011-3649 primarily affects Mozilla Firefox. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-3649?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-3649 published?

CVE-2011-3649 was published on 2011-11-09 and last updated on 2026-06-16.

CVE-2011-3649

CVE-2011-3649 is a low-severity vulnerability in Mozilla Firefox with a CVSS 2.0 base score of 2.6. 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-200.

Key facts

Severity: Low (CVSS 2.0 base score 2.6)
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Mozilla Firefox
Published: 2011-11-09
Last modified: 2026-06-16

Description

Mozilla Firefox 7.0 and Thunderbird 7.0, when the Direct2D (aka D2D) API is used on Windows in conjunction with the Azure graphics back-end, allow remote attackers to bypass the Same Origin Policy, and obtain sensitive image data from a different domain, by inserting this data into a canvas. NOTE: this issue exists because of a CVE-2011-2986 regression.

Frequently asked questions

What is CVE-2011-3649?: Mozilla Firefox 7.0 and Thunderbird 7.0, when the Direct2D (aka D2D) API is used on Windows in conjunction with the Azure graphics back-end, allow remote attackers to bypass the Same Origin Policy, and obtain sensitive image data from a different domain, by inserting this data into a canvas. NOTE: this issue exists because of a CVE-2011-2986 regression.
How severe is CVE-2011-3649?: CVE-2011-3649 has a CVSS 2.0 base score of 2.6, rated low severity.
Is CVE-2011-3649 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-3649?: CVE-2011-3649 primarily affects Mozilla Firefox. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-3649?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-3649 published?: CVE-2011-3649 was published on 2011-11-09 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:mozilla:firefox:7.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:7.0:*:*:*:*:*:*:*

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