CVE-2016-9079
HighExploitedPublic exploitA use-after-free vulnerability in SVG Animation has been discovered.
Published Jun 11, 2018 · Updated Aug 4, 2026 · Also known as DEBIAN-CVE-2016-9079, DSA-3728-1, SUSE-SU-2016:3048-1, UBUNTU-CVE-2016-9079
Key Facts
Patch immediately- CVE-2016-9079 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Firefox (Mozilla), Thunderbird (Mozilla), Tor (Torproject) and 22 more products.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Nov 29, 2016. Public exploit code is available.
- EPSS estimates a 88% probability of exploitation in the next 30 days.
- Fixed versions are available, including Firefox 0:45.5.1-1.el5_11, Firefox 0:45.5.1-1.el6_8, Firefox 0:45.5.1-1.el7_3.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS (30-day exploit likelihood)
88%
Higher than 99.7% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2016-9079 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Jun 22, 2023 | Jul 13, 2023 | Not reported |
| Industry KEV feed | Nov 29, 2016 | Jul 13, 2023 | Not reported |
| CIRCL KEV | Jun 22, 2023 | Jul 13, 2023 | Not reported |
| ENISA EUVD | Jun 22, 2023 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
234 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| FirefoxMozilla | >= unspecified | 50.0.2 |
| ThunderbirdMozilla | >= unspecified | 45.5.1 |
| TorTorproject | See advisory | n/a |
| Debian LinuxDebian | 9.0 | n/a |
| Enterprise LinuxRedhat | 5.0, 6.0, 7.0 | n/a |
Patched Releases
Firefox
0:45.5.1-1.el5_11, 0:45.5.1-1.el6_8, 0:45.5.1-1.el7_3, 45.5.1-1.0.1.el5_11, 45.5.1-1.0.1.el6_8, 45.5.1-1.0.1.el7_3, 50.0.2-1, 50.0.2+build1-0ubuntu0.14.04.1, 50.0.2+build1-0ubuntu0.16.04.1, 50.0.2, 45.5.1
Firefox ESR
45.5.1, 128.5.1-1.1, 45.5.1esr-1, 45.5.1esr-1~deb7u1, 45.5.1esr-1~deb8u1
firefox-esr-branding-upstream
128.5.1-1.1
firefox-esr-translations-common
128.5.1-1.1
firefox-esr-translations-other
128.5.1-1.1
icedove
1:45.5.1-1~deb7u1, 1:45.5.1-1~deb8u1
libfreebl3
3.21.3-30.1, 3.21.3-39.1
libfreebl3-32bit
3.21.3-30.1, 3.21.3-39.1
libfreebl3-x86
3.21.3-39.1
libsoftokn3
3.21.3-39.1
libsoftokn3-32bit
3.21.3-39.1
libsoftokn3-x86
3.21.3-39.1
Thunderbird
45.5.1, 0:45.5.1-1.el5_11, 0:45.5.1-1.el6_8, 0:45.5.1-1.el7_3, 1:45.5.1+build1-0ubuntu0.14.04.1, 1:45.5.1+build1-0ubuntu0.16.04.1, 45.5.1-1, 45.5.1-1.0.1.el5_11, 45.5.1-1.0.1.el6_8, 45.5.1-1.0.1.el7_3
mozilla-nss
3.21.3-30.1, 3.21.3-39.1
mozilla-nss-32bit
3.21.3-30.1, 3.21.3-39.1
mozilla-nss-devel
3.21.3-30.1, 3.21.3-39.1
mozilla-nss-tools
3.21.3-30.1, 3.21.3-39.1
mozilla-nss-x86
3.21.3-39.1
MozillaFirefox
45.5.1esr-59.1, 45.5.1esr-63.1, 45.5.1esr-93.1, 50.0.2-42.2, 50.1.0-1.1
MozillaFirefox-branding-upstream
50.0.2-42.2, 50.1.0-1.1
MozillaFirefox-buildsymbols
50.0.2-42.2, 50.1.0-1.1
MozillaFirefox-devel
45.5.1esr-59.1, 45.5.1esr-93.1, 50.0.2-42.2, 50.1.0-1.1
MozillaFirefox-translations
45.5.1esr-59.1, 45.5.1esr-63.1, 45.5.1esr-93.1
MozillaFirefox-translations-common
50.0.2-42.2, 50.1.0-1.1
MozillaFirefox-translations-other
50.0.2-42.2, 50.1.0-1.1
Timeline
Added to Industry KEV feed
Nov 29, 2016
Publicly disclosed
Jun 11, 2018
Added to CISA KEV
Jun 22, 2023
Added to CIRCL KEV
Jun 22, 2023
Added to ENISA EUVD
Jun 22, 2023
Last updated
Aug 4, 2026
Weakness Type
- CWE-416 Use After Free
References
- advisoryRHSA-2016:2843
- advisoryRHSA-2016:2850
- advisoryRHSA-2016:2843
- advisoryRHSA-2016:2850
- advisoryhttps://bugzilla.suse.com/1000751
FAQ
Common Questions.
A use-after-free vulnerability in SVG Animation has been discovered.
Affected: Firefox (Mozilla) versions >= unspecified; Thunderbird (Mozilla) versions >= unspecified; Tor (Torproject), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Nov 29, 2016.
Yes. It was added on Jun 22, 2023 with a federal remediation due date of Jul 13, 2023.
Public exploit code is available.
Fixed versions are available, including Firefox 0:45.5.1-1.el5_11, Firefox 0:45.5.1-1.el6_8, Firefox 0:45.5.1-1.el7_3.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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