CVE-2018-5170
It is possible to spoof the filename of an attachment and display an arbitrary attachment name.
Does this matter?
Lower severity and a low EPSS score (1.70%). Track it; it rarely justifies an emergency change on its own.
Description
It is possible to spoof the filename of an attachment and display an arbitrary attachment name. This could lead to a user opening a remote attachment which is a different file type than expected. This vulnerability affects Thunderbird ESR < 52.8 and Thunderbird < 52.8.
- CVSS 3.0
- 4.3 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
- EPSS
- 1.70% probability · 77th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server eus · redhat/enterprise linux server tus · redhat/enterprise linux workstation · mozilla/thunderbird · mozilla/thunderbird esr · debian/debian linux · canonical/ubuntu linux
- Source
- security@mozilla.org
EPSS 1.7% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securitytracker.com/id/1040946Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:1725Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1726Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1411732Issue Tracking, Permissions Required
- https://lists.debian.org/debian-lts-announce/2018/05/msg00013.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201811-13Third Party Advisory
- https://usn.ubuntu.com/3660-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4209Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-13/Vendor Advisory
- http://www.securitytracker.com/id/1040946Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:1725Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1726Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1411732Issue Tracking, Permissions Required
- https://lists.debian.org/debian-lts-announce/2018/05/msg00013.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201811-13Third Party Advisory
- https://usn.ubuntu.com/3660-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4209Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-13/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.