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Vulnerability details: VCID-qash-jh7h-dqg9
Vulnerability ID VCID-qash-jh7h-dqg9
Aliases CVE-2019-11709
Summary Mozilla developers and community members Andreea Pavel, Christian Holler, Honza Bambas, Jason Kratzer, and Jeff Gilbert reported memory safety bugs present in Firefox 67 and Firefox ESR 60.7. 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 (2)
CWE-787 Out-of-bounds Write
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
System Score Found at
cvssv3 9.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-11709.json
epss 0.03929 https://api.first.org/data/v1/epss?cve=CVE-2019-11709
epss 0.03929 https://api.first.org/data/v1/epss?cve=CVE-2019-11709
epss 0.03929 https://api.first.org/data/v1/epss?cve=CVE-2019-11709
epss 0.03929 https://api.first.org/data/v1/epss?cve=CVE-2019-11709
epss 0.03929 https://api.first.org/data/v1/epss?cve=CVE-2019-11709
epss 0.03929 https://api.first.org/data/v1/epss?cve=CVE-2019-11709
epss 0.03929 https://api.first.org/data/v1/epss?cve=CVE-2019-11709
epss 0.03929 https://api.first.org/data/v1/epss?cve=CVE-2019-11709
epss 0.03929 https://api.first.org/data/v1/epss?cve=CVE-2019-11709
epss 0.03929 https://api.first.org/data/v1/epss?cve=CVE-2019-11709
epss 0.03929 https://api.first.org/data/v1/epss?cve=CVE-2019-11709
epss 0.03929 https://api.first.org/data/v1/epss?cve=CVE-2019-11709
epss 0.03929 https://api.first.org/data/v1/epss?cve=CVE-2019-11709
epss 0.03929 https://api.first.org/data/v1/epss?cve=CVE-2019-11709
epss 0.03929 https://api.first.org/data/v1/epss?cve=CVE-2019-11709
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2019-11709
cvssv3.1 9.8 https://nvd.nist.gov/vuln/detail/CVE-2019-11709
archlinux Critical https://security.archlinux.org/AVG-1002
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2019-21
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2019-22
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2019-23
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2019-28
Reference id Reference type URL
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00055.html
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00058.html
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00073.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-11709.json
https://api.first.org/data/v1/epss?cve=CVE-2019-11709
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1547266%2C1540759%2C1548822%2C1550498%2C1515052%2C1539219%2C1547757%2C1550498%2C1533522
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11709
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11711
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11712
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11713
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11715
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11717
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11730
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9811
https://lists.debian.org/debian-lts-announce/2019/08/msg00001.html
https://lists.debian.org/debian-lts-announce/2019/08/msg00002.html
https://security.gentoo.org/glsa/201908-20
https://www.mozilla.org/security/advisories/mfsa2019-21/
https://www.mozilla.org/security/advisories/mfsa2019-22/
https://www.mozilla.org/security/advisories/mfsa2019-23/
1728430 https://bugzilla.redhat.com/show_bug.cgi?id=1728430
ASA-201907-4 https://security.archlinux.org/ASA-201907-4
AVG-1002 https://security.archlinux.org/AVG-1002
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:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
CVE-2019-11709 https://nvd.nist.gov/vuln/detail/CVE-2019-11709
mfsa2019-21 https://www.mozilla.org/en-US/security/advisories/mfsa2019-21
mfsa2019-22 https://www.mozilla.org/en-US/security/advisories/mfsa2019-22
mfsa2019-23 https://www.mozilla.org/en-US/security/advisories/mfsa2019-23
mfsa2019-28 https://www.mozilla.org/en-US/security/advisories/mfsa2019-28
RHSA-2019:1763 https://access.redhat.com/errata/RHSA-2019:1763
RHSA-2019:1764 https://access.redhat.com/errata/RHSA-2019:1764
RHSA-2019:1765 https://access.redhat.com/errata/RHSA-2019:1765
RHSA-2019:1775 https://access.redhat.com/errata/RHSA-2019:1775
RHSA-2019:1777 https://access.redhat.com/errata/RHSA-2019:1777
RHSA-2019:1799 https://access.redhat.com/errata/RHSA-2019:1799
USN-4054-1 https://usn.ubuntu.com/4054-1/
USN-4064-1 https://usn.ubuntu.com/4064-1/
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-2019-11709.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:L/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2019-11709
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:3.1/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-2019-11709
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 0.87869
EPSS Score 0.03929
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:57.325112+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2019/mfsa2019-22.yml 37.0.0