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 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.
Key facts
- CVSS score
- 7.5 (v3.1)
- Severity
- HIGH
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
- CWE-416
- EPSS score
- 87.5% (100th percentile)
- In CISA KEV
- Yes, added June 22, 2023
- In EU EUVD
- Yes (EUVD-2016-9900)
- Published
- June 11, 2018
- NVD last modified
- June 17, 2026
- Status
- Analyzed
CISA Known Exploited Vulnerability
Mozilla Firefox, Firefox ESR, and Thunderbird Use-After-Free Vulnerability
Added to the KEV catalog on June 22, 2023; federal remediation due July 13, 2023.
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2016-9900 in the EU Vulnerability Database. ENISA flags it as known exploited. Last updated in EUVD on October 21, 2025.
View on the EU Vulnerability DatabaseAffected products
- debian / debian linux
- microsoft / windows
- mozilla / firefox
- mozilla / firefox
- mozilla / thunderbird
- redhat / enterprise linux
- redhat / enterprise linux
- redhat / enterprise linux
- redhat / enterprise linux desktop
- redhat / enterprise linux desktop
- redhat / enterprise linux desktop
- redhat / enterprise linux server
- redhat / enterprise linux server
- redhat / enterprise linux server
- redhat / enterprise linux server aus
- redhat / enterprise linux server aus
- redhat / enterprise linux server eus
- redhat / enterprise linux server eus
- redhat / enterprise linux server eus
- redhat / enterprise linux workstation
- redhat / enterprise linux workstation
- redhat / enterprise linux workstation
- torproject / tor
Certified products that may be affected
7 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.
- Red Hat Enterprise Linux libgcrypt Cryptographic Module v4.0 [1] and Red Hat Enterprise Linux libgcrypt Cryptographic Module v5.0 [2] - Red Hat®, Inc. - FIPS 140 2657 - historical
- Red Hat Enterprise Linux 5 OpenSSH-Server Cryptographic Module - Red Hat®, Inc. - FIPS 140 1384 - historical
- Red Hat Enterprise Linux 5 OpenSSH Client Cryptographic Module - Red Hat®, Inc. - FIPS 140 1385 - historical
- Red Hat Enterprise Linux 5 OpenSwan Cryptographic Module - Red Hat®, Inc. - FIPS 140 1386 - historical
- Red Hat Enterprise Linux 5 Kernel Crypto API Cryptographic Module - Red Hat®, Inc. - FIPS 140 1387 - historical
See all 7 in the Security Certifications Explorer.
References
- http://rhn.redhat.com/errata/RHSA-2016-2843.html(Third Party Advisory)
- http://rhn.redhat.com/errata/RHSA-2016-2850.html(Third Party Advisory)
- http://www.securityfocus.com/bid/94591(Broken Link, Third Party Advisory, VDB Entry)
- http://www.securitytracker.com/id/1037370(Third Party Advisory, VDB Entry)
- https://bugzilla.mozilla.org/show_bug.cgi?id=1321066(Exploit, Issue Tracking, Vendor Advisory)
- https://security.gentoo.org/glsa/201701-15(Third Party Advisory)
- https://security.gentoo.org/glsa/201701-35(Third Party Advisory)
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-9079(US Government Resource)
- https://www.debian.org/security/2016/dsa-3730(Third Party Advisory)
- https://www.exploit-db.com/exploits/41151/(Exploit, Third Party Advisory, VDB Entry)
- https://www.exploit-db.com/exploits/42327/(Exploit, Third Party Advisory, VDB Entry)
- https://www.mozilla.org/security/advisories/mfsa2016-92/(Vendor Advisory)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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