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CVE-2015-2741

UnknownEPSS 1.31%

Last modified

CVE-2015-2741 is a vulnerability of currently unknown severity. Mozilla Firefox before 39.0, Firefox ESR 38.x before 38.1, and Thunderbird before 38.1 do not enforce key pinning upon encountering an X.509 certificate problem that generates a user dialog, which allows user-assisted man-in-the-middle attackers to bypass intended access restrictions by triggering a (1) expired certificate or (2) mismatched hostname for a domain with pinning enabled.. EPSS estimates a 1.31% chance of exploitation in the next 30 days.

Description

Mozilla Firefox before 39.0, Firefox ESR 38.x before 38.1, and Thunderbird before 38.1 do not enforce key pinning upon encountering an X.509 certificate problem that generates a user dialog, which allows user-assisted man-in-the-middle attackers to bypass intended access restrictions by triggering a (1) expired certificate or (2) mismatched hostname for a domain with pinning enabled.

Metrics

EPSS Probability
1.31%

66.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
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

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2015-2741?
Mozilla Firefox before 39.0, Firefox ESR 38.x before 38.1, and Thunderbird before 38.1 do not enforce key pinning upon encountering an X.509 certificate problem that generates a user dialog, which allows user-assisted man-in-the-middle attackers to bypass intended access restrictions by triggering a (1) expired certificate or (2) mismatched hostname for a domain with pinning enabled.
How severe is CVE-2015-2741?
Severity scoring for CVE-2015-2741 is pending analysis. The EPSS model estimates a 1.31% probability of exploitation in the next 30 days.
How do I fix CVE-2015-2741?
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-2015-2741?

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

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Source: NVD / NIST