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CVE-2016-2821

UnknownEPSS 2.78%

Last modified

CVE-2016-2821 is a vulnerability of currently unknown severity. Use-after-free vulnerability in the mozilla::dom::Element class in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2, when contenteditable mode is enabled, allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) by triggering deletion of DOM elements that were created in the editor.. EPSS estimates a 2.78% chance of exploitation in the next 30 days.

Description

Use-after-free vulnerability in the mozilla::dom::Element class in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2, when contenteditable mode is enabled, allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) by triggering deletion of DOM elements that were created in the editor.

Metrics

EPSS Probability
2.78%

84.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
MozillaFirefox<= 46.0.1
MozillaFirefox45.1.0
MozillaFirefox45.1.1
DebianDebian Linux8.0
OpensuseLeap42.1
OpensuseOpensuse13.1
OpensuseOpensuse13.2
CanonicalUbuntu Linux12.04
CanonicalUbuntu Linux14.04
CanonicalUbuntu Linux15.10
CanonicalUbuntu Linux16.04

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2016-2821?
Use-after-free vulnerability in the mozilla::dom::Element class in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2, when contenteditable mode is enabled, allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) by triggering deletion of DOM elements that were created in the editor.
How severe is CVE-2016-2821?
Severity scoring for CVE-2016-2821 is pending analysis. The EPSS model estimates a 2.78% probability of exploitation in the next 30 days.
How do I fix CVE-2016-2821?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-2821?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST