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Vulnerability details: VCID-s7rr-2tvd-xfah
Vulnerability ID VCID-s7rr-2tvd-xfah
Aliases CVE-2016-9893
Summary Mozilla developers and community members Jan de Mooij, Iris Hsiao, Christian Holler, Carsten Book, Timothy Nikkel, Christoph Diehl, Olli Pettay, Raymond Forbes, Boris Zbarsky, and Marco Castelluccio reported memory safety bugs present in Firefox 50.0.2 and Firefox ESR 45.5.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
System Score Found at
cvssv3 9.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-9893.json
epss 0.03554 https://api.first.org/data/v1/epss?cve=CVE-2016-9893
epss 0.03554 https://api.first.org/data/v1/epss?cve=CVE-2016-9893
epss 0.03554 https://api.first.org/data/v1/epss?cve=CVE-2016-9893
epss 0.03554 https://api.first.org/data/v1/epss?cve=CVE-2016-9893
epss 0.03554 https://api.first.org/data/v1/epss?cve=CVE-2016-9893
epss 0.03554 https://api.first.org/data/v1/epss?cve=CVE-2016-9893
epss 0.03554 https://api.first.org/data/v1/epss?cve=CVE-2016-9893
epss 0.03554 https://api.first.org/data/v1/epss?cve=CVE-2016-9893
epss 0.03554 https://api.first.org/data/v1/epss?cve=CVE-2016-9893
epss 0.03554 https://api.first.org/data/v1/epss?cve=CVE-2016-9893
epss 0.03554 https://api.first.org/data/v1/epss?cve=CVE-2016-9893
epss 0.03554 https://api.first.org/data/v1/epss?cve=CVE-2016-9893
epss 0.03554 https://api.first.org/data/v1/epss?cve=CVE-2016-9893
epss 0.03554 https://api.first.org/data/v1/epss?cve=CVE-2016-9893
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-2016-9893
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2016-9893
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-2016-9893.json
https://api.first.org/data/v1/epss?cve=CVE-2016-9893
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1319524%2C1298773%2C1299098%2C1309834%2C1312609%2C1313212%2C1317805%2C1312548%2C1315631%2C1287912
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.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
1404096 https://bugzilla.redhat.com/show_bug.cgi?id=1404096
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-2016-9893 https://nvd.nist.gov/vuln/detail/CVE-2016-9893
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/
No exploits are available.
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-2016-9893.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-2016-9893
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-2016-9893
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 0.87266
EPSS Score 0.03554
Published At Aug. 10, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:12.943815+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2016/mfsa2016-94.yml 37.0.0