Security readout for executives and security teams
This is an older Mozilla FTP-handling flaw. Certain FTP response codes could make Firefox or Thunderbird use uninitialized port values during FTP operations. The source bundle does not describe business impact, CVSS, or confirmed exploitation, so urgency depends on whether affected legacy Mozilla versions remain in use. Exposure is most likely in unmanaged or legacy endpoints still running the affected Mozilla versions, including distribution-packaged builds covered by Red Hat, Debian, or Gentoo advisories. Current exposure cannot be inferred without asset inventory. Treat this as a legacy hygiene issue unless affected Mozilla versions are still present. Prioritize remediation where old desktop images, unmanaged endpoints, or vendor-packaged Mozilla clients remain in production. Mitigation focus: Upgrade Firefox to version 52 or later, or an applicable vendor-fixed backport.; Upgrade Firefox ESR to version 45.8 or later, or an applicable vendor-fixed backport.; Upgrade Thunderbird to the fixed release line identified by Mozilla or OS vendor advisories..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2017-5405 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://bugzilla.mozilla.org/show_bug.cgi?id=1336699CVE reference · x_refsource_CONFIRM
- https://www.mozilla.org/security/advisories/mfsa2017-09/CVE reference · x_refsource_CONFIRM
- DSA-3832CVE reference · vendor-advisory, x_refsource_DEBIAN
- https://www.mozilla.org/security/advisories/mfsa2017-07/CVE reference · x_refsource_CONFIRM
- https://www.mozilla.org/security/advisories/mfsa2017-05/CVE reference · x_refsource_CONFIRM
- GLSA-201705-06CVE reference · vendor-advisory, x_refsource_GENTOO
- DSA-3805CVE reference · vendor-advisory, x_refsource_DEBIAN
- https://www.mozilla.org/security/advisories/mfsa2017-06/CVE reference · x_refsource_CONFIRM
- GLSA-201705-07CVE reference · vendor-advisory, x_refsource_GENTOO
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.