Security readout for executives and security teams
CVE-2016-9899 is a Mozilla memory-safety flaw in older Firefox, Firefox ESR, and Thunderbird releases. It involves DOM event handling and audio element removal. For executives, the main concern is any legacy browser or mail client still in use, because this class of bug can become serious when users process untrusted content. Exposure is most likely in environments retaining unsupported Mozilla clients or old Linux distribution packages. Current managed endpoints are unlikely to be exposed if Firefox, Firefox ESR, and Thunderbird have been upgraded past the fixed versions. Treat as urgent only if legacy Mozilla software remains deployed. If current supported versions are enforced, this is primarily a historical hygiene item requiring inventory confirmation. Mitigation focus: Upgrade Firefox to 50.1 or later where applicable.; Upgrade Firefox ESR to 45.6 or later where applicable.; Upgrade Thunderbird to 45.6 or later where applicable..
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
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CVE-2016-9899 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/mfsa2016-94/CVE reference · x_refsource_CONFIRM
- https://www.mozilla.org/security/advisories/mfsa2016-95/CVE reference · x_refsource_CONFIRM
- https://bugzilla.mozilla.org/show_bug.cgi?id=1317409CVE reference · x_refsource_CONFIRM
- GLSA-201701-15CVE reference · vendor-advisory, x_refsource_GENTOO
- DSA-3757CVE reference · vendor-advisory, x_refsource_DEBIAN
- 41042CVE reference · exploit, x_refsource_EXPLOIT-DB
- https://www.mozilla.org/security/advisories/mfsa2016-96/CVE 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.