CVE-2017-5408

Public Exploit

Description

Video files loaded video captions cross-origin without checking for the presence of CORS headers permitting such cross-origin use, leading to potential information disclosure for video captions. This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird < 45.8.

Category

5.3
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.21% Top 25%
Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory gentoo.org Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory gentoo.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Affected: Mozilla Firefox ESR
Affected: Mozilla Thunderbird
Published at:
Updated at:

References

Link Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1313711 issue tracking patch vendor advisory exploit
http://www.securityfocus.com/bid/96693 vdb entry third party advisory
http://rhn.redhat.com/errata/RHSA-2017-0459.html third party advisory vendor advisory
https://www.mozilla.org/security/advisories/mfsa2017-09/ vendor advisory
https://www.debian.org/security/2017/dsa-3832 third party advisory vendor advisory
https://www.mozilla.org/security/advisories/mfsa2017-07/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2017-05/ vendor advisory
http://www.securitytracker.com/id/1037966 vdb entry third party advisory
https://security.gentoo.org/glsa/201705-06 third party advisory vendor advisory
http://rhn.redhat.com/errata/RHSA-2017-0461.html third party advisory vendor advisory
https://www.debian.org/security/2017/dsa-3805 third party advisory vendor advisory
https://www.mozilla.org/security/advisories/mfsa2017-06/ vendor advisory
http://rhn.redhat.com/errata/RHSA-2017-0498.html third party advisory vendor advisory
https://security.gentoo.org/glsa/201705-07 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-5408?
CVE-2017-5408 has been scored as a medium severity vulnerability.
How to fix CVE-2017-5408?
To fix CVE-2017-5408, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-5408 being actively exploited in the wild?
It is possible that CVE-2017-5408 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-5408?
CVE-2017-5408 affects Mozilla Firefox, Mozilla Firefox ESR, Mozilla Thunderbird.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.