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Vulnerability details: VCID-2j27-84u7-83ak
Vulnerability ID VCID-2j27-84u7-83ak
Aliases CVE-2016-5276
Summary Multiple vulnerabilities have been found in Mozilla Firefox and Thunderbird the worst of which could lead to the execution of arbitrary code.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (0)
There are no known CWE.
System Score Found at
cvssv3 9.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-5276.json
epss 0.01919 https://api.first.org/data/v1/epss?cve=CVE-2016-5276
epss 0.01919 https://api.first.org/data/v1/epss?cve=CVE-2016-5276
epss 0.01919 https://api.first.org/data/v1/epss?cve=CVE-2016-5276
epss 0.01919 https://api.first.org/data/v1/epss?cve=CVE-2016-5276
epss 0.01919 https://api.first.org/data/v1/epss?cve=CVE-2016-5276
epss 0.01919 https://api.first.org/data/v1/epss?cve=CVE-2016-5276
epss 0.01919 https://api.first.org/data/v1/epss?cve=CVE-2016-5276
epss 0.01919 https://api.first.org/data/v1/epss?cve=CVE-2016-5276
archlinux Critical https://security.archlinux.org/AVG-24
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2016-85
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2016-86
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2016-88
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-5276.json
https://api.first.org/data/v1/epss?cve=CVE-2016-5276
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5257
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5270
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5272
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5274
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5276
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5277
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5278
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5280
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5281
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5284
1377557 https://bugzilla.redhat.com/show_bug.cgi?id=1377557
ASA-201609-22 https://security.archlinux.org/ASA-201609-22
AVG-24 https://security.archlinux.org/AVG-24
GLSA-201701-15 https://security.gentoo.org/glsa/201701-15
mfsa2016-85 https://www.mozilla.org/en-US/security/advisories/mfsa2016-85
mfsa2016-86 https://www.mozilla.org/en-US/security/advisories/mfsa2016-86
mfsa2016-88 https://www.mozilla.org/en-US/security/advisories/mfsa2016-88
RHSA-2016:1912 https://access.redhat.com/errata/RHSA-2016:1912
USN-3076-1 https://usn.ubuntu.com/3076-1/
USN-3112-1 https://usn.ubuntu.com/3112-1/
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-2016-5276.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
Exploit Prediction Scoring System (EPSS)
Percentile 0.83269
EPSS Score 0.01919
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T13:10:19.193796+00:00 Gentoo Importer Import https://security.gentoo.org/glsa/201701-15 38.0.0