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CVE-2015-2733

UnknownEPSS 6.18%

Last modified

CVE-2015-2733 is a vulnerability of currently unknown severity. Use-after-free vulnerability in the CanonicalizeXPCOMParticipant function in Mozilla Firefox before 39.0 and Firefox ESR 31.x before 31.8 and 38.x before 38.1 allows remote attackers to execute arbitrary code via vectors involving attachment of an XMLHttpRequest object to a dedicated worker.. EPSS estimates a 6.18% chance of exploitation in the next 30 days.

Description

Use-after-free vulnerability in the CanonicalizeXPCOMParticipant function in Mozilla Firefox before 39.0 and Firefox ESR 31.x before 31.8 and 38.x before 38.1 allows remote attackers to execute arbitrary code via vectors involving attachment of an XMLHttpRequest object to a dedicated worker.

Metrics

EPSS Probability
6.18%

92.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersionsUpdate
MozillaFirefox<= 38.1.0—
OracleSolaris11.3—
MozillaFirefox31.0—
MozillaFirefox31.1.0—
MozillaFirefox31.1.1—
MozillaFirefox31.3.0—
MozillaFirefox31.5.1—
MozillaFirefox31.5.2—
MozillaFirefox31.5.3—
MozillaFirefox38.0—
MozillaFirefox Esr31.1—
MozillaFirefox Esr31.2—
MozillaFirefox Esr31.3—
MozillaFirefox Esr31.4—
MozillaFirefox Esr31.5—
MozillaFirefox Esr31.6.0—
MozillaFirefox Esr31.7.0—
NovellSuse Linux Enterprise Desktop11Sp4
NovellSuse Linux Enterprise Desktop12.0—
NovellSuse Linux Enterprise Server12.0—

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2015-2733?
Use-after-free vulnerability in the CanonicalizeXPCOMParticipant function in Mozilla Firefox before 39.0 and Firefox ESR 31.x before 31.8 and 38.x before 38.1 allows remote attackers to execute arbitrary code via vectors involving attachment of an XMLHttpRequest object to a dedicated worker.
How severe is CVE-2015-2733?
Severity scoring for CVE-2015-2733 is pending analysis. The EPSS model estimates a 6.18% probability of exploitation in the next 30 days.
How do I fix CVE-2015-2733?
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-2015-2733?

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

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Source: NVD / NIST