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Vulnerability details: VCID-kphr-u6t6-yqeh
Vulnerability ID VCID-kphr-u6t6-yqeh
Aliases CVE-2016-5291
Summary A same-origin policy bypass with local shortcut files to load arbitrary local content from disk.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-20 Improper Input Validation
System Score Found at
cvssv3 6.1 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-5291.json
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2016-5291
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2016-5291
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2016-5291
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2016-5291
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2016-5291
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2016-5291
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2016-5291
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2016-5291
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2016-5291
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2016-5291
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2016-5291
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2016-5291
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2016-5291
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2016-5291
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2016-5291
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2016-5291
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2016-5291
epss 0.00037 https://api.first.org/data/v1/epss?cve=CVE-2016-5291
cvssv2 4.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 4.9 https://nvd.nist.gov/vuln/detail/CVE-2016-5291
cvssv3 5.5 https://nvd.nist.gov/vuln/detail/CVE-2016-5291
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
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2016-93
Reference id Reference type URL
http://rhn.redhat.com/errata/RHSA-2016-2780.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-5291.json
https://api.first.org/data/v1/epss?cve=CVE-2016-5291
https://bugzilla.mozilla.org/show_bug.cgi?id=1292159
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://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9079
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/
https://www.mozilla.org/security/advisories/mfsa2016-93/
http://www.securityfocus.com/bid/94336
http://www.securitytracker.com/id/1037298
1395065 https://bugzilla.redhat.com/show_bug.cgi?id=1395065
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:*:*:*:*:*:*:*:*
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:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
CVE-2016-5291 https://nvd.nist.gov/vuln/detail/CVE-2016-5291
mfsa2016-89 https://www.mozilla.org/en-US/security/advisories/mfsa2016-89
mfsa2016-90 https://www.mozilla.org/en-US/security/advisories/mfsa2016-90
mfsa2016-93 https://www.mozilla.org/en-US/security/advisories/mfsa2016-93
RHSA-2016:2780 https://access.redhat.com/errata/RHSA-2016:2780
USN-3124-1 https://usn.ubuntu.com/3124-1/
USN-3141-1 https://usn.ubuntu.com/3141-1/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-5291.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:N/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:L/AC:L/Au:N/C:C/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2016-5291
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:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2016-5291
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 0.09611
EPSS Score 0.00037
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:13.050667+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2016/mfsa2016-93.yml 37.0.0