Security readout for executives and security teams
CVE-2016-5287 is a Mozilla Firefox memory-safety issue involving service workers. Mozilla described it as a potentially exploitable use-after-free crash. The provided sources say it affects Firefox before 49.0.2, while also noting releases earlier than Firefox 49 were not affected. Exposure is most likely on endpoints still running legacy Firefox 49.0 or 49.0.1. The bundle does not identify server-side exposure, other Mozilla products, or supported modern Firefox versions as affected. Handle as a targeted legacy-browser cleanup item. It is not KEV-listed, but potentially exploitable browser memory corruption deserves prompt remediation where vulnerable Firefox 49 deployments still exist. Mitigation focus: Upgrade affected Firefox installations to 49.0.2 or a supported current release.; Remove or isolate unsupported legacy Firefox builds from managed endpoints.; Check Mozilla guidance before applying environment-specific compensating controls..
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-2016-5287 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
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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/mfsa2016-87/CVE reference · x_refsource_CONFIRM
- https://bugzilla.mozilla.org/show_bug.cgi?id=1309823CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
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