Security readout for executives and security teams
CVE-2017-5377 is a Mozilla Firefox memory corruption issue in Skia gradient rendering. The source says it can cause a potentially exploitable crash and affects Firefox versions before 51. Business risk is mainly legacy-browser exposure, not current mainstream Firefox deployments. Exposure is expected on systems still running Firefox before version 51. Modern managed fleets should have low exposure if automatic browser updates are enforced and legacy portable or embedded Firefox copies are absent. Address during legacy software cleanup or browser hygiene work. Escalate if any business process still depends on Firefox < 51, because unsupported browsers accumulate many unrelated security risks. Mitigation focus: Upgrade Firefox to version 51 or later following Mozilla guidance.; Remove unsupported legacy Firefox installations from managed endpoints.; Enforce browser auto-update policies across desktop fleets..
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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CVE-2017-5377 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/mfsa2017-01/CVE reference · x_refsource_CONFIRM
- https://bugzilla.mozilla.org/show_bug.cgi?id=1306883CVE 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.
