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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…

High7.5Known exploitedEPSS 87.4%
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.

Scores

CVSS scores of CVE-2016-9079, by who scored it
Scored byCVSSScoreVector
CISA-ADPADP (enrichment)3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVDNVD · Analyzed3.1High7.5CVSS: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 (2 Nov 2026)
CISA SSVC
Exploitation: active · Automatable: yes · Technical impact: partial

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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

Affected products

  • Mozilla · Firefox

    • affected unspecified – < 50.0.2

  • Mozilla · Firefox ESR

    • affected unspecified – < 45.5.1

  • Mozilla · Thunderbird

    • affected unspecified – < 45.5.1

References (12)

Sources

The same CVE in the primary databases and aggregators, to check against.

Record last updated .