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CVE-2009-5017

UnknownEPSS 1.87%

Last modified

CVE-2009-5017 is a vulnerability of currently unknown severity. Mozilla Firefox before 3.6 Beta 3 does not properly handle overlong UTF-8 encoding, which makes it easier for remote attackers to bypass cross-site scripting (XSS) protection mechanisms via a crafted string, a different vulnerability than CVE-2010-1210.. EPSS estimates a 1.87% chance of exploitation in the next 30 days.

Description

Mozilla Firefox before 3.6 Beta 3 does not properly handle overlong UTF-8 encoding, which makes it easier for remote attackers to bypass cross-site scripting (XSS) protection mechanisms via a crafted string, a different vulnerability than CVE-2010-1210.

Metrics

EPSS Probability
1.87%

76.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
MozillaFirefox<= 3.6Beta2
MozillaFirefox3.6Beta1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2009-5017?
Mozilla Firefox before 3.6 Beta 3 does not properly handle overlong UTF-8 encoding, which makes it easier for remote attackers to bypass cross-site scripting (XSS) protection mechanisms via a crafted string, a different vulnerability than CVE-2010-1210.
How severe is CVE-2009-5017?
Severity scoring for CVE-2009-5017 is pending analysis. The EPSS model estimates a 1.87% probability of exploitation in the next 30 days.
How do I fix CVE-2009-5017?
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.

How Strix Helps

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Source: NVD / NIST