Vulnerability Details CVE-2021-29961
When styling and rendering an oversized `<select>` element, Firefox did not apply correct clipping which allowed an attacker to paint over the user interface. This vulnerability affects Firefox < 89.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 54.1%
CVSS Severity
CVSS v3 Score 4.3
CVSS v2 Score 4.3
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1700235
- https://security.gentoo.org/glsa/202107-09
- https://www.mozilla.org/security/advisories/mfsa2021-23/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1700235
- https://security.gentoo.org/glsa/202107-09
- https://www.mozilla.org/security/advisories/mfsa2021-23/
Products affected by CVE-2021-29961
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cpe:2.3:a:mozilla:firefox:78.11.0
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cpe:2.3:a:mozilla:firefox:78.12.0
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cpe:2.3:a:mozilla:firefox:78.13.0
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cpe:2.3:a:mozilla:firefox:78.14.0
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cpe:2.3:a:mozilla:firefox:78.15.0
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cpe:2.3:a:mozilla:firefox:79.0
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cpe:2.3:a:mozilla:firefox:80.0
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cpe:2.3:a:mozilla:firefox:80.0.1
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cpe:2.3:a:mozilla:firefox:81.0
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cpe:2.3:a:mozilla:firefox:81.0.1
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cpe:2.3:a:mozilla:firefox:81.0.2
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cpe:2.3:a:mozilla:firefox:82.0
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cpe:2.3:a:mozilla:firefox:82.0.1
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cpe:2.3:a:mozilla:firefox:82.0.2
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cpe:2.3:a:mozilla:firefox:82.0.3
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cpe:2.3:a:mozilla:firefox:83.0
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cpe:2.3:a:mozilla:firefox:84.0
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cpe:2.3:a:mozilla:firefox:84.0.1
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cpe:2.3:a:mozilla:firefox:84.0.2
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cpe:2.3:a:mozilla:firefox:84.1.3
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cpe:2.3:a:mozilla:firefox:85.0
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cpe:2.3:a:mozilla:firefox:85.0.1
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cpe:2.3:a:mozilla:firefox:85.0.2
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cpe:2.3:a:mozilla:firefox:86.0
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cpe:2.3:a:mozilla:firefox:86.0.1
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cpe:2.3:a:mozilla:firefox:87.0
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cpe:2.3:a:mozilla:firefox:88.0
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cpe:2.3:a:mozilla:firefox:88.0.1