CVE-2016-9079 — Mozilla Firefox, Firefox ESR, and Thunderbird Use-After-Free Vulnerability

CVE-2016-9079 (Mozilla Firefox, Firefox ESR, and Thunderbird) is in the CISA Known Exploited Vulnerabilities catalog since 2023-06-22. Mozilla Firefox, Firefox ESR, and Thunderbird contain a use-after-free vulnerability in SVG Animation… See the required fix, due date and advisories.

Exploitation status

CVE-2016-9079 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 2023-06-22. Mozilla Firefox, Firefox ESR, and Thunderbird contain a use-after-free vulnerability in SVG Animation, targeting Firefox and Tor browser users on Windows.

Advisory facts

Vendor or project
Mozilla
Affected product
Firefox, Firefox ESR, and Thunderbird
Added to CISA KEV
2023-06-22
US federal remediation due date
2023-07-13
Ransomware association
Unknown
EPSS score
—
Weakness (CWE)
CWE-416

Remediation: the required action

Apply updates per vendor instructions.

Wording published by CISA for this catalog entry. It is the baseline action, not a decision about your environment: whether this exposure matters for you depends on where the affected component runs, what it is exposed to and who owns it.

From advisory to a decision you can defend

A catalog entry tells you a vulnerability is being exploited somewhere. It does not tell you whether it matters in your estate, who owns the fix, or what evidence an auditor will ask for later. That is the work VulnTrek does: it takes findings from the tools you already run, decides which exposure actually matters, routes it to an owner, keeps remediation human-approved and retains the lineage as evidence.

Sourced from public upstream advisories (CISA KEV, ENISA EUVD, vendor PSIRTs) mirrored daily. Informational only — not a remediation decision, not legal advice, and the absence of a record is not evidence of safety.