CVE-2017-7804

Name: CVE-2017-7804
Creator: NVD / NIST
Published: 2018-06-11T21:29:09.983+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.51%

Last modified Jun 17, 2026

CVE-2017-7804 is a vulnerability of currently unknown severity. The destructor function for the "WindowsDllDetourPatcher" class can be re-purposed by malicious code in concert with another vulnerability to write arbitrary data to an attacker controlled location in memory. This can be used to bypass existing memory protections in this situation. EPSS estimates a 1.51% chance of exploitation in the next 30 days.

Description

The destructor function for the "WindowsDllDetourPatcher" class can be re-purposed by malicious code in concert with another vulnerability to write arbitrary data to an attacker controlled location in memory. This can be used to bypass existing memory protections in this situation. Note: This attack only affects Windows operating systems. Other operating systems are not affected. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.

Metrics

EPSS Probability

1.51%

71.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 52.3.0
Mozilla	Firefox	< 55.0
Mozilla	Thunderbird	< 52.3.0

References

http://www.securityfocus.com/bid/100234Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039124Third Party Advisory, VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1372849Issue Tracking, Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2017-18/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-19/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-20/Vendor Advisory
http://www.securityfocus.com/bid/100234Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039124Third Party Advisory, VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1372849Issue Tracking, Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2017-18/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-19/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-20/Vendor Advisory

Timeline

Published: Jun 11, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-7804?

How severe is CVE-2017-7804?

Severity scoring for CVE-2017-7804 is pending analysis. The EPSS model estimates a 1.51% probability of exploitation in the next 30 days.

How do I fix CVE-2017-7804?

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-2017-7804?

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

Scan your code now

Source: NVD / NIST