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Vulnerability details: VCID-h2zq-ubdu-sqc8
Vulnerability ID VCID-h2zq-ubdu-sqc8
Aliases CVE-2017-5443
Summary Multiple vulnerabilities have been found in Mozilla Firefox, the worst of which may allow execution of arbitrary code.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-787 Out-of-bounds Write
System Score Found at
cvssv3 9.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2017-5443.json
epss 0.01436 https://api.first.org/data/v1/epss?cve=CVE-2017-5443
epss 0.01436 https://api.first.org/data/v1/epss?cve=CVE-2017-5443
epss 0.01436 https://api.first.org/data/v1/epss?cve=CVE-2017-5443
epss 0.01436 https://api.first.org/data/v1/epss?cve=CVE-2017-5443
epss 0.01436 https://api.first.org/data/v1/epss?cve=CVE-2017-5443
epss 0.01436 https://api.first.org/data/v1/epss?cve=CVE-2017-5443
epss 0.01436 https://api.first.org/data/v1/epss?cve=CVE-2017-5443
epss 0.01436 https://api.first.org/data/v1/epss?cve=CVE-2017-5443
epss 0.01436 https://api.first.org/data/v1/epss?cve=CVE-2017-5443
epss 0.01436 https://api.first.org/data/v1/epss?cve=CVE-2017-5443
epss 0.01436 https://api.first.org/data/v1/epss?cve=CVE-2017-5443
epss 0.01436 https://api.first.org/data/v1/epss?cve=CVE-2017-5443
epss 0.01436 https://api.first.org/data/v1/epss?cve=CVE-2017-5443
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-2017-5443
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2017-5443
archlinux Critical https://security.archlinux.org/AVG-249
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2017-10
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2017-11
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2017-12
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2017-13
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2017-5443.json
https://api.first.org/data/v1/epss?cve=CVE-2017-5443
https://bugzilla.mozilla.org/show_bug.cgi?id=1342661
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5429
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5432
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5433
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5434
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5435
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5436
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5438
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5439
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5440
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5441
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5442
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5443
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5444
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5445
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5446
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5447
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5448
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5459
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5460
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5461
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5462
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5464
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5465
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5469
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://www.debian.org/security/2017/dsa-3831
https://www.mozilla.org/security/advisories/mfsa2017-10/
https://www.mozilla.org/security/advisories/mfsa2017-11/
https://www.mozilla.org/security/advisories/mfsa2017-12/
https://www.mozilla.org/security/advisories/mfsa2017-13/
http://www.securityfocus.com/bid/97940
http://www.securitytracker.com/id/1038320
1443299 https://bugzilla.redhat.com/show_bug.cgi?id=1443299
ASA-201704-6 https://security.archlinux.org/ASA-201704-6
AVG-249 https://security.archlinux.org/AVG-249
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:52.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:firefox:52.0:*:*:*:*:*:*:*
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: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: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: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: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-2017-5443 https://nvd.nist.gov/vuln/detail/CVE-2017-5443
GLSA-201802-03 https://security.gentoo.org/glsa/201802-03
mfsa2017-10 https://www.mozilla.org/en-US/security/advisories/mfsa2017-10
mfsa2017-11 https://www.mozilla.org/en-US/security/advisories/mfsa2017-11
mfsa2017-12 https://www.mozilla.org/en-US/security/advisories/mfsa2017-12
mfsa2017-13 https://www.mozilla.org/en-US/security/advisories/mfsa2017-13
RHSA-2017:1104 https://access.redhat.com/errata/RHSA-2017:1104
RHSA-2017:1106 https://access.redhat.com/errata/RHSA-2017:1106
RHSA-2017:1201 https://access.redhat.com/errata/RHSA-2017:1201
USN-3260-1 https://usn.ubuntu.com/3260-1/
USN-3278-1 https://usn.ubuntu.com/3278-1/
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-2017-5443.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-2017-5443
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-2017-5443
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 0.80636
EPSS Score 0.01436
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T13:11:54.912720+00:00 Gentoo Importer Import https://security.gentoo.org/glsa/201802-03 38.0.0