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Vulnerability details: VCID-s4th-dr22-h3hg
Vulnerability ID VCID-s4th-dr22-h3hg
Aliases CVE-2016-9064
Summary Add-on updates failed to verify that the add-on ID inside the signed package matched the ID of the add-on being updated. An attacker who could perform a man-in-the-middle attack on the user's connection to the update server and defeat the certificate pinning protection could provide a malicious signed add-on instead of a valid update.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-295 Improper Certificate Validation
System Score Found at
cvssv3 5.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-9064.json
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
epss 0.00274 https://api.first.org/data/v1/epss?cve=CVE-2016-9064
cvssv2 4 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2016-9064
cvssv3 5.9 https://nvd.nist.gov/vuln/detail/CVE-2016-9064
archlinux Critical https://security.archlinux.org/AVG-72
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2016-89
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2016-90
Reference id Reference type URL
http://rhn.redhat.com/errata/RHSA-2016-2780.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-9064.json
https://api.first.org/data/v1/epss?cve=CVE-2016-9064
https://bugzilla.mozilla.org/show_bug.cgi?id=1303418
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5290
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5291
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5296
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5297
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9064
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9066
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9074
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://www.mozilla.org/security/advisories/mfsa2016-89/
https://www.mozilla.org/security/advisories/mfsa2016-90/
http://www.securityfocus.com/bid/94336
http://www.securitytracker.com/id/1037298
1395060 https://bugzilla.redhat.com/show_bug.cgi?id=1395060
ASA-201611-16 https://security.archlinux.org/ASA-201611-16
AVG-72 https://security.archlinux.org/AVG-72
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:*:*:*:*:*:*:*:*
CVE-2016-9064 https://nvd.nist.gov/vuln/detail/CVE-2016-9064
mfsa2016-89 https://www.mozilla.org/en-US/security/advisories/mfsa2016-89
mfsa2016-90 https://www.mozilla.org/en-US/security/advisories/mfsa2016-90
RHSA-2016:2780 https://access.redhat.com/errata/RHSA-2016:2780
USN-3124-1 https://usn.ubuntu.com/3124-1/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-9064.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:H/Au:N/C:P/I:P/A:N 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:M/Au:N/C:N/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2016-9064
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:H/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2016-9064
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 0.50552
EPSS Score 0.00274
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:14.338618+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2016/mfsa2016-89.yml 37.0.0