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Vulnerability details: VCID-yrw3-v7nz-tbdt
Vulnerability ID VCID-yrw3-v7nz-tbdt
Aliases CVE-2019-9811
Summary As part of his winning Pwn2Own entry, Niklas Baumstark demonstrated a sandbox escape by installing a malicious language pack and then opening a browser feature that used the compromised translation.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-807 Reliance on Untrusted Inputs in a Security Decision
System Score Found at
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-9811.json
epss 0.01317 https://api.first.org/data/v1/epss?cve=CVE-2019-9811
epss 0.01317 https://api.first.org/data/v1/epss?cve=CVE-2019-9811
epss 0.01317 https://api.first.org/data/v1/epss?cve=CVE-2019-9811
epss 0.01317 https://api.first.org/data/v1/epss?cve=CVE-2019-9811
epss 0.01317 https://api.first.org/data/v1/epss?cve=CVE-2019-9811
epss 0.01317 https://api.first.org/data/v1/epss?cve=CVE-2019-9811
epss 0.01317 https://api.first.org/data/v1/epss?cve=CVE-2019-9811
epss 0.01317 https://api.first.org/data/v1/epss?cve=CVE-2019-9811
epss 0.01317 https://api.first.org/data/v1/epss?cve=CVE-2019-9811
epss 0.01317 https://api.first.org/data/v1/epss?cve=CVE-2019-9811
epss 0.01317 https://api.first.org/data/v1/epss?cve=CVE-2019-9811
epss 0.01317 https://api.first.org/data/v1/epss?cve=CVE-2019-9811
epss 0.01317 https://api.first.org/data/v1/epss?cve=CVE-2019-9811
epss 0.01317 https://api.first.org/data/v1/epss?cve=CVE-2019-9811
epss 0.01317 https://api.first.org/data/v1/epss?cve=CVE-2019-9811
cvssv3.1 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 5.1 https://nvd.nist.gov/vuln/detail/CVE-2019-9811
cvssv3.1 8.3 https://nvd.nist.gov/vuln/detail/CVE-2019-9811
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
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/msg00011.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-9811.json
https://api.first.org/data/v1/epss?cve=CVE-2019-9811
https://bugzilla.mozilla.org/show_bug.cgi?id=1538007
https://bugzilla.mozilla.org/show_bug.cgi?id=1539598
https://bugzilla.mozilla.org/show_bug.cgi?id=1563327
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://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
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/
1728439 https://bugzilla.redhat.com/show_bug.cgi?id=1728439
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:a:novell:suse_package_hub_for_suse_linux_enterprise:12:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:novell:suse_package_hub_for_suse_linux_enterprise:12:*:*:*:*:*:*:*
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-2019-9811 https://nvd.nist.gov/vuln/detail/CVE-2019-9811
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
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:H/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-9811.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: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
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:H/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2019-9811
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:H/PR:N/UI:R/S:C/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-9811
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 0.79013
EPSS Score 0.01317
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:57.138736+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2019/mfsa2019-22.yml 37.0.0