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CVE-2009-3376

UnknownEPSS 3.18%

Last modified

CVE-2009-3376 is a vulnerability of currently unknown severity. Mozilla Firefox before 3.0.15 and 3.5.x before 3.5.4, and SeaMonkey before 2.0, does not properly handle a right-to-left override (aka RLO or U+202E) Unicode character in a download filename, which allows remote attackers to spoof file extensions via a crafted filename, as demonstrated by displaying a non-executable extension for an executable file.. EPSS estimates a 3.18% chance of exploitation in the next 30 days.

Description

Mozilla Firefox before 3.0.15 and 3.5.x before 3.5.4, and SeaMonkey before 2.0, does not properly handle a right-to-left override (aka RLO or U+202E) Unicode character in a download filename, which allows remote attackers to spoof file extensions via a crafted filename, as demonstrated by displaying a non-executable extension for an executable file.

Metrics

EPSS Probability
3.18%

86.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
MozillaFirefox3.0Beta5
MozillaFirefox3.0.1—
MozillaFirefox3.0.2—
MozillaFirefox3.0.3—
MozillaFirefox3.0.4—
MozillaFirefox3.0.5—
MozillaFirefox3.0.6—
MozillaFirefox3.0.7—
MozillaFirefox3.0.8—
MozillaFirefox3.0.9—
MozillaFirefox3.0.10—
MozillaFirefox3.0.11—
MozillaFirefox3.0.12—
MozillaFirefox3.0.13—
MozillaFirefox3.5.1—
MozillaFirefox3.5.2—
MozillaFirefox3.5.3—
MozillaSeamonkey<= 1.5.0.10—
MozillaSeamonkey1.0—
MozillaSeamonkey1.0.1—
MozillaSeamonkey1.0.2—
MozillaSeamonkey1.0.3—
MozillaSeamonkey1.0.4—
MozillaSeamonkey1.0.5—
MozillaSeamonkey1.0.6—
MozillaSeamonkey1.0.7—
MozillaSeamonkey1.0.8—
MozillaSeamonkey1.0.9—
MozillaSeamonkey1.1—
MozillaSeamonkey1.1.1—
MozillaSeamonkey1.1.2—
MozillaSeamonkey1.1.3—
MozillaSeamonkey1.1.4—
MozillaSeamonkey1.1.5—
MozillaSeamonkey1.1.6—
MozillaSeamonkey1.1.7—
MozillaSeamonkey1.1.8—
MozillaSeamonkey1.1.9—
MozillaSeamonkey1.1.10—
MozillaSeamonkey1.1.11—
MozillaSeamonkey1.1.12—
MozillaSeamonkey1.1.13—
MozillaSeamonkey1.1.14—
MozillaSeamonkey1.1.15—
MozillaSeamonkey1.1.16—
MozillaSeamonkey1.1.17—
MozillaSeamonkey1.5.0.8—
MozillaSeamonkey1.5.0.9—

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2009-3376?
Mozilla Firefox before 3.0.15 and 3.5.x before 3.5.4, and SeaMonkey before 2.0, does not properly handle a right-to-left override (aka RLO or U+202E) Unicode character in a download filename, which allows remote attackers to spoof file extensions via a crafted filename, as demonstrated by displaying a non-executable extension for an executable file.
How severe is CVE-2009-3376?
Severity scoring for CVE-2009-3376 is pending analysis. The EPSS model estimates a 3.18% probability of exploitation in the next 30 days.
How do I fix CVE-2009-3376?
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-2009-3376?

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

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Source: NVD / NIST