Security readout for executives and security teams
CVE-2017-5373 covers Mozilla memory safety defects in older Firefox, Firefox ESR, and Thunderbird releases. Mozilla reported memory corruption and presumed that some issues could allow arbitrary code execution with enough effort. This is mainly a legacy software risk: supported, updated installations should not be exposed. Exposure is likely limited to hosts still running legacy Mozilla browser or mail client versions, especially old Linux distributions, embedded desktops, kiosks, or unmanaged workstations. Modern supported releases should be checked only for confirmation. Treat this as a high-priority legacy cleanup item, not an emergency active-exploitation event based on the provided evidence. Prioritize internet-facing user workstations, email users, shared kiosks, and systems that cannot quickly move to supported Mozilla releases. Mitigation focus: Upgrade Firefox to 51 or later, or a currently supported release.; Upgrade Firefox ESR to 45.7 or later, preferably a supported ESR line.; Upgrade Thunderbird to 45.7 or later, preferably a supported release..
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
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ATT&CK lookup starting points
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Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2017-5373 mapping review
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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://www.mozilla.org/security/advisories/mfsa2017-03/CVE reference · x_refsource_CONFIRM
- https://www.mozilla.org/security/advisories/mfsa2017-02/CVE reference · x_refsource_CONFIRM
- GLSA-201702-22CVE reference · vendor-advisory, x_refsource_GENTOO
- DSA-3832CVE reference · vendor-advisory, x_refsource_DEBIAN
- GLSA-201702-13CVE reference · vendor-advisory, x_refsource_GENTOO
- DSA-3771CVE reference · vendor-advisory, x_refsource_DEBIAN
- https://www.mozilla.org/security/advisories/mfsa2017-01/CVE reference · x_refsource_CONFIRM
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1322315%2C1328834%2C1322420%2C1285833%2C1285960%2C1328251%2C1331058%2C1325938%2C1325877CVE reference · x_refsource_CONFIRM
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.