VulnerabilityModified
CVE-2017-5405
This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird < 45.8.
MEDIUM 5.3EPSS 2.54%
Does this matter?
Lower severity and a low EPSS score (2.54%). Track it; it rarely justifies an emergency change on its own.
Description
Certain response codes in FTP connections can result in the use of uninitialized values for ports in FTP operations. This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird < 45.8.
- CVSS 3.0
- 5.3 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 2.54% probability · 85th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-1187
- Affected
- debian/debian linux · redhat/enterprise linux · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server eus · redhat/enterprise linux workstation · mozilla/firefox · mozilla/thunderbird
- Source
- security@mozilla.org
EPSS 2.5% 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://rhn.redhat.com/errata/RHSA-2017-0459.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0461.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0498.htmlThird Party Advisory
- http://www.securityfocus.com/bid/96693Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037966Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1336699Exploit, Issue Tracking, Vendor Advisory
- https://security.gentoo.org/glsa/201705-06Third Party Advisory
- https://security.gentoo.org/glsa/201705-07Third Party Advisory
- https://www.debian.org/security/2017/dsa-3805Third Party Advisory
- https://www.debian.org/security/2017/dsa-3832Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-05/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-06/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-07/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-09/Vendor Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0459.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0461.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0498.htmlThird Party Advisory
- http://www.securityfocus.com/bid/96693Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037966Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1336699Exploit, Issue Tracking, Vendor Advisory
- https://security.gentoo.org/glsa/201705-06Third Party Advisory
- https://security.gentoo.org/glsa/201705-07Third Party Advisory
- https://www.debian.org/security/2017/dsa-3805Third Party Advisory
- https://www.debian.org/security/2017/dsa-3832Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-05/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-06/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-07/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-09/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.