CVE-2016-9079
A use-after-free vulnerability in SVG Animation has been discovered. An exploit built on this vulnerability has been discovered in the…
- Published
- Updated
- Reserved
- Assigned by
- mozilla
Description
A use-after-free vulnerability in SVG Animation has been discovered. An exploit built on this vulnerability has been discovered in the wild targeting Firefox and Tor Browser users on Windows. This vulnerability affects Firefox < 50.0.2, Firefox ESR < 45.5.1, and Thunderbird < 45.5.1.
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Mozilla Firefox, Firefox ESR, and Thunderbird Use-After-Free Vulnerability.
- Added
- 22 Jun 2023
- Fix due (US federal)
- 13 Jul 2023
- Used by ransomware
- Not known
Apply updates per vendor instructions.
Public exploit
2 references of the record are tagged as an exploit or proof of concept: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: it is being exploited.
- 42327 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- 41151 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
Timeline
ID reserved
By mozilla
- 20 months later
· 20 months later
Published
- 5 years later
· 5 years later
Added to CISA KEV
Known exploited in the wild
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVDNVD · Analyzed | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 87.4% · top 0.2% of all CVEs (8 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
- Use-after-free in SVG Animation
- CWE-416 Use After Free (opens in a new tab)All about CWE-416 and its CVEs
Affected products
- affected unspecified – < 50.0.2
- affected unspecified – < 45.5.1
- affected unspecified – < 45.5.1
References (12)
- DSA-3730 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- RHSA-2016:2843 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- GLSA-201701-35 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- 1037370 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 42327 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- RHSA-2016:2850 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://www.mozilla.org/security/advisories/mfsa2016-92/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- 94591 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- GLSA-201701-15 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- 41151 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=1321066 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-9079 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2016-9079)Record last updated .