Search for vulnerabilities
Vulnerability details: VCID-w2cv-hkkh-4kcb
Vulnerability ID VCID-w2cv-hkkh-4kcb
Aliases CVE-2017-5398
Summary Mozilla developers and community members Boris Zbarsky, Christian Holler, Honza Bambas, Jon Coppeard, Randell Jesup, André Bargull, Kan-Ru Chen, and Nathan Froyd reported memory safety bugs present in Firefox 51 and Firefox ESR 45.7. 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-2017-5398.json
epss 0.02508 https://api.first.org/data/v1/epss?cve=CVE-2017-5398
epss 0.02508 https://api.first.org/data/v1/epss?cve=CVE-2017-5398
epss 0.02508 https://api.first.org/data/v1/epss?cve=CVE-2017-5398
epss 0.02508 https://api.first.org/data/v1/epss?cve=CVE-2017-5398
epss 0.02508 https://api.first.org/data/v1/epss?cve=CVE-2017-5398
epss 0.02508 https://api.first.org/data/v1/epss?cve=CVE-2017-5398
epss 0.02508 https://api.first.org/data/v1/epss?cve=CVE-2017-5398
epss 0.02508 https://api.first.org/data/v1/epss?cve=CVE-2017-5398
epss 0.02508 https://api.first.org/data/v1/epss?cve=CVE-2017-5398
epss 0.02508 https://api.first.org/data/v1/epss?cve=CVE-2017-5398
epss 0.02508 https://api.first.org/data/v1/epss?cve=CVE-2017-5398
epss 0.02508 https://api.first.org/data/v1/epss?cve=CVE-2017-5398
epss 0.02508 https://api.first.org/data/v1/epss?cve=CVE-2017-5398
epss 0.02508 https://api.first.org/data/v1/epss?cve=CVE-2017-5398
epss 0.02508 https://api.first.org/data/v1/epss?cve=CVE-2017-5398
cvssv2 6.8 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 10.0 https://nvd.nist.gov/vuln/detail/CVE-2017-5398
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2017-5398
archlinux Critical https://security.archlinux.org/AVG-193
archlinux Critical https://security.archlinux.org/AVG-194
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2017-05
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2017-06
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2017-07
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2017-09
Reference id Reference type URL
http://rhn.redhat.com/errata/RHSA-2017-0459.html
http://rhn.redhat.com/errata/RHSA-2017-0461.html
http://rhn.redhat.com/errata/RHSA-2017-0498.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2017-5398.json
https://api.first.org/data/v1/epss?cve=CVE-2017-5398
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1332550%2C1332597%2C1338383%2C1321612%2C1322971%2C1333568%2C1333887%2C1335450%2C1325052%2C1324379%2C1336510
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5373
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5375
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5376
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5378
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5380
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5383
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5390
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5396
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5398
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5400
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5401
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5402
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5404
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5405
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5407
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5408
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5410
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://security.gentoo.org/glsa/201705-06
https://security.gentoo.org/glsa/201705-07
https://www.debian.org/security/2017/dsa-3805
https://www.debian.org/security/2017/dsa-3832
https://www.mozilla.org/security/advisories/mfsa2017-05/
https://www.mozilla.org/security/advisories/mfsa2017-06/
https://www.mozilla.org/security/advisories/mfsa2017-07/
https://www.mozilla.org/security/advisories/mfsa2017-09/
http://www.securityfocus.com/bid/96651
http://www.securitytracker.com/id/1037966
1429786 https://bugzilla.redhat.com/show_bug.cgi?id=1429786
ASA-201703-2 https://security.archlinux.org/ASA-201703-2
ASA-201703-3 https://security.archlinux.org/ASA-201703-3
AVG-193 https://security.archlinux.org/AVG-193
AVG-194 https://security.archlinux.org/AVG-194
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:a:mozilla:thunderbird_esr:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:thunderbird_esr:*:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
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_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-2017-5398 https://nvd.nist.gov/vuln/detail/CVE-2017-5398
mfsa2017-05 https://www.mozilla.org/en-US/security/advisories/mfsa2017-05
mfsa2017-06 https://www.mozilla.org/en-US/security/advisories/mfsa2017-06
mfsa2017-07 https://www.mozilla.org/en-US/security/advisories/mfsa2017-07
mfsa2017-09 https://www.mozilla.org/en-US/security/advisories/mfsa2017-09
RHSA-2017:0459 https://access.redhat.com/errata/RHSA-2017:0459
RHSA-2017:0461 https://access.redhat.com/errata/RHSA-2017:0461
RHSA-2017:0498 https://access.redhat.com/errata/RHSA-2017:0498
USN-3216-1 https://usn.ubuntu.com/3216-1/
USN-3233-1 https://usn.ubuntu.com/3233-1/
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-2017-5398.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:C/I:C/A:C Found at https://nvd.nist.gov/vuln/detail/CVE-2017-5398
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-2017-5398
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 0.84753
EPSS Score 0.02508
Published At Aug. 5, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:15.687352+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2017/mfsa2017-05.yml 37.0.0