How severe is CVE-2010-1207?

CVE-2010-1207 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2010-1207 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-1207?

CVE-2010-1207 primarily affects Mozilla Firefox. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-1207?

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

When was CVE-2010-1207 published?

CVE-2010-1207 was published on 2010-07-30 and last updated on 2026-06-16.

CVE-2010-1207

CVE-2010-1207 is a medium-severity vulnerability in Mozilla Firefox 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-264.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Mozilla Firefox
Published: 2010-07-30
Last modified: 2026-06-16

Description

Mozilla Firefox before 3.6.7 and Thunderbird before 3.1.1 do not properly implement read restrictions for CANVAS elements, which allows remote attackers to obtain sensitive cross-origin information via vectors involving reference retention and node deletion.

Frequently asked questions

What is CVE-2010-1207?: Mozilla Firefox before 3.6.7 and Thunderbird before 3.1.1 do not properly implement read restrictions for CANVAS elements, which allows remote attackers to obtain sensitive cross-origin information via vectors involving reference retention and node deletion.
How severe is CVE-2010-1207?: CVE-2010-1207 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2010-1207 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-1207?: CVE-2010-1207 primarily affects Mozilla Firefox. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-1207?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-1207 published?: CVE-2010-1207 was published on 2010-07-30 and last updated on 2026-06-16.

References

Affected products (6)

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:3.6:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:3.6.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:3.6.3:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:3.6.4:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*

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