Security readout for executives and security teams
This is an old Firefox privacy and information-disclosure flaw. A malicious web page could access parts of the browser HTTP cache when Firefox’s e10s multi-process feature was disabled, potentially exposing visited URLs and cached page contents. The cited data limits impact to Firefox 48, 49, and Firefox versions before 49.0.2. Exposure is most plausible on legacy endpoints still running Firefox 48, Firefox 49, or any Firefox build before 49.0.2, especially where e10s was disabled. Modern supported Firefox deployments are unlikely to be exposed based on the version range cited. Handle through legacy software cleanup rather than emergency response unless old Firefox remains in use. The business risk is privacy leakage from browser cache data, not confirmed remote code execution. Prioritize if regulated data or shared workstations used vulnerable versions. Mitigation focus: Upgrade affected Firefox installations to 49.0.2 or later.; Remove unsupported Firefox 48 and 49 installations from managed endpoints.; Check Mozilla MFSA2016-87 and Bugzilla guidance for vendor-specific remediation details..
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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CVE-2016-5288 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://bugzilla.mozilla.org/show_bug.cgi?id=1310183CVE reference · x_refsource_CONFIRM
- https://www.mozilla.org/security/advisories/mfsa2016-87/CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
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