CVE-2017-7829

Public Exploit

Description

It is possible to spoof the sender's email address and display an arbitrary sender address to the email recipient. The real sender's address is not displayed if preceded by a null character in the display string. This vulnerability affects Thunderbird < 52.5.2.

Category

5.3
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.57% Top 20%
Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory mozilla.org
Affected: Mozilla Thunderbird
Published at:
Updated at:

References

Link Tags
https://lists.debian.org/debian-lts-announce/2017/12/msg00026.html third party advisory mailing list
https://usn.ubuntu.com/3529-1/ third party advisory vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1423432 issue tracking exploit patch
http://www.securityfocus.com/bid/102258 vdb entry third party advisory
http://www.securitytracker.com/id/1040123 vdb entry third party advisory
https://www.mozilla.org/security/advisories/mfsa2017-30/ vendor advisory
https://www.debian.org/security/2017/dsa-4075 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2018:0061 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-7829?
CVE-2017-7829 has been scored as a medium severity vulnerability.
How to fix CVE-2017-7829?
To fix CVE-2017-7829, 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-2017-7829 being actively exploited in the wild?
It is possible that CVE-2017-7829 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-7829?
CVE-2017-7829 affects 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.