high Known exploitedREV. 01
CVE-2016-9079Firefox — freed memory in the animation code
A use-after-free in the animation handling of Firefox and Thunderbird runs an attacker's code. The exploit found in the wild went after people using Firefox and the Tor Browser on Windows.
Read the risk
THE VITAL STATS- CVSS score
- 7.5/ 10 CVSS v3.1
- EPSS probability
- 87% Likelihood of exploitation
- Attack complexity
- Low Conditions needed to exploit
- Known exploited
- Yes — CISA KEV
- CVE published
- 2018-06-11
- Added to KEV
- 2023-06-22
- Exploit published
- Yes
- Confidence
- high
- Kill chain
- execution
- MITRE ATT&CK
- T1203
- Severity
- high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attacker needsThe user must visit a page the attacker controls.
Fixed inFirefox >= 50.0.2, Firefox ESR >= 45.5.1, Thunderbird >= 45.5.1
Behind the card
5 REFERENCES- 01CVE recordNVD recordnvd.nist.gov
- 02CISACISA Known Exploited Vulnerabilities catalogcisa.gov
- 03Vendor advisorymozilla.orgmozilla.org
- 04Exploitbugzilla.mozilla.orgbugzilla.mozilla.org
- 05Exploitexploit-db.comexploit-db.com
Field-level provenanceTRACE THE SOURCES +
Which source supports each field, when it was retrieved, and who extracted it.
| Fields | Source | Retrieved | Extractor | Confidence |
|---|---|---|---|---|
| cvss, exploitation.attack_complexity, exploitation.exploit_available, references, published_at | nvd.nist.gov | 2026-09-24 | scrty-crds-pipeline/0.1 | high |
| exploitation.known_exploited, exploitation.kev_added | cisa.gov | 2026-09-24 | scrty-crds-pipeline/0.1 | high |
| epss | api.first.org | 2026-09-24 | scrty-crds-pipeline/0.1 | high |
| title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisites | nvd.nist.gov | 2026-09-24 | claude-code | high |
Printing history
THE RECORD- r1Initial base card
First printing. This card has not been reprinted since publication.