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Vulnerability details: VCID-8rxk-qxz2-2ff6
Vulnerability ID VCID-8rxk-qxz2-2ff6
Aliases CVE-2016-9899
Summary Use-after-free while manipulating DOM events and removing audio elements due to errors in the handling of node adoption.
Status Published
Exploitability 2.0
Weighted Severity 9.0
Risk 10.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-416 Use After Free
System Score Found at
cvssv3 9.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-9899.json
epss 0.39485 https://api.first.org/data/v1/epss?cve=CVE-2016-9899
epss 0.39485 https://api.first.org/data/v1/epss?cve=CVE-2016-9899
epss 0.39485 https://api.first.org/data/v1/epss?cve=CVE-2016-9899
epss 0.39485 https://api.first.org/data/v1/epss?cve=CVE-2016-9899
epss 0.39485 https://api.first.org/data/v1/epss?cve=CVE-2016-9899
epss 0.39485 https://api.first.org/data/v1/epss?cve=CVE-2016-9899
epss 0.39485 https://api.first.org/data/v1/epss?cve=CVE-2016-9899
epss 0.39485 https://api.first.org/data/v1/epss?cve=CVE-2016-9899
epss 0.39485 https://api.first.org/data/v1/epss?cve=CVE-2016-9899
epss 0.39485 https://api.first.org/data/v1/epss?cve=CVE-2016-9899
epss 0.39485 https://api.first.org/data/v1/epss?cve=CVE-2016-9899
epss 0.39485 https://api.first.org/data/v1/epss?cve=CVE-2016-9899
epss 0.39485 https://api.first.org/data/v1/epss?cve=CVE-2016-9899
epss 0.39485 https://api.first.org/data/v1/epss?cve=CVE-2016-9899
epss 0.39485 https://api.first.org/data/v1/epss?cve=CVE-2016-9899
epss 0.39485 https://api.first.org/data/v1/epss?cve=CVE-2016-9899
epss 0.39485 https://api.first.org/data/v1/epss?cve=CVE-2016-9899
epss 0.39485 https://api.first.org/data/v1/epss?cve=CVE-2016-9899
epss 0.39485 https://api.first.org/data/v1/epss?cve=CVE-2016-9899
epss 0.39485 https://api.first.org/data/v1/epss?cve=CVE-2016-9899
epss 0.39485 https://api.first.org/data/v1/epss?cve=CVE-2016-9899
epss 0.39485 https://api.first.org/data/v1/epss?cve=CVE-2016-9899
epss 0.39485 https://api.first.org/data/v1/epss?cve=CVE-2016-9899
cvssv2 6.8 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2016-9899
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2016-9899
archlinux Critical https://security.archlinux.org/AVG-106
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2016-94
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2016-95
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2016-96
Reference id Reference type URL
http://rhn.redhat.com/errata/RHSA-2016-2946.html
http://rhn.redhat.com/errata/RHSA-2016-2973.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-9899.json
https://api.first.org/data/v1/epss?cve=CVE-2016-9899
https://bugzilla.mozilla.org/show_bug.cgi?id=1317409
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9893
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9895
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9897
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9898
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9899
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9900
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9901
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9902
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9904
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9905
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://www.debian.org/security/2017/dsa-3757
https://www.exploit-db.com/exploits/41042/
https://www.mozilla.org/security/advisories/mfsa2016-94/
https://www.mozilla.org/security/advisories/mfsa2016-95/
https://www.mozilla.org/security/advisories/mfsa2016-96/
http://www.securityfocus.com/bid/94885
http://www.securitytracker.com/id/1037461
1404083 https://bugzilla.redhat.com/show_bug.cgi?id=1404083
ASA-201612-15 https://security.archlinux.org/ASA-201612-15
AVG-106 https://security.archlinux.org/AVG-106
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
CVE-2016-9899 Exploit https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/dos/41042.html
CVE-2016-9899 https://nvd.nist.gov/vuln/detail/CVE-2016-9899
mfsa2016-94 https://www.mozilla.org/en-US/security/advisories/mfsa2016-94
mfsa2016-95 https://www.mozilla.org/en-US/security/advisories/mfsa2016-95
mfsa2016-96 https://www.mozilla.org/en-US/security/advisories/mfsa2016-96
RHSA-2016:2946 https://access.redhat.com/errata/RHSA-2016:2946
RHSA-2016:2973 https://access.redhat.com/errata/RHSA-2016:2973
USN-3155-1 https://usn.ubuntu.com/3155-1/
USN-3165-1 https://usn.ubuntu.com/3165-1/
Data source Exploit-DB
Date added Jan. 13, 2017
Description Mozilla Firefox < 50.1.0 - Use-After-Free
Ransomware campaign use Unknown
Source publication date Jan. 13, 2017
Exploit type dos
Platform windows
Source update date Jan. 16, 2017
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-9899.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2016-9899
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2016-9899
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.97164
EPSS Score 0.39485
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:12.727368+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2016/mfsa2016-94.yml 37.0.0