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Vulnerability details: VCID-rfdz-ru2y-ukgt
Vulnerability ID VCID-rfdz-ru2y-ukgt
Aliases CVE-2019-11706
Summary A flaw in Thunderbird's implementation of iCal causes a type confusion in icaltimezone_get_vtimezone_properties when processing certain email messages, resulting in a crash.
Status Published
Exploitability 2.0
Weighted Severity 8.0
Risk 10.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')
System Score Found at
cvssv3 7.4 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-11706.json
epss 0.04094 https://api.first.org/data/v1/epss?cve=CVE-2019-11706
epss 0.04094 https://api.first.org/data/v1/epss?cve=CVE-2019-11706
epss 0.04094 https://api.first.org/data/v1/epss?cve=CVE-2019-11706
epss 0.04094 https://api.first.org/data/v1/epss?cve=CVE-2019-11706
epss 0.04094 https://api.first.org/data/v1/epss?cve=CVE-2019-11706
epss 0.04094 https://api.first.org/data/v1/epss?cve=CVE-2019-11706
epss 0.04094 https://api.first.org/data/v1/epss?cve=CVE-2019-11706
epss 0.04094 https://api.first.org/data/v1/epss?cve=CVE-2019-11706
epss 0.04094 https://api.first.org/data/v1/epss?cve=CVE-2019-11706
epss 0.04094 https://api.first.org/data/v1/epss?cve=CVE-2019-11706
epss 0.04094 https://api.first.org/data/v1/epss?cve=CVE-2019-11706
epss 0.04094 https://api.first.org/data/v1/epss?cve=CVE-2019-11706
epss 0.04094 https://api.first.org/data/v1/epss?cve=CVE-2019-11706
cvssv3 5.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2019-11706
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2019-11706
archlinux High https://security.archlinux.org/AVG-980
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2019-17
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-11706.json
https://api.first.org/data/v1/epss?cve=CVE-2019-11706
https://bugzilla.mozilla.org/show_bug.cgi?id=1555646
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11703
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11704
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11705
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11706
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://security.gentoo.org/glsa/201908-20
https://www.mozilla.org/security/advisories/mfsa2019-17/
1720011 https://bugzilla.redhat.com/show_bug.cgi?id=1720011
ASA-201906-10 https://security.archlinux.org/ASA-201906-10
AVG-980 https://security.archlinux.org/AVG-980
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:*:*:*:*:*:*:*:*
CVE-2019-11706 Exploit https://github.com/x41sec/advisories/tree/master/X41-2019-004
CVE-2019-11706 Exploit https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/dos/47001.txt
CVE-2019-11706 https://nvd.nist.gov/vuln/detail/CVE-2019-11706
mfsa2019-17 https://www.mozilla.org/en-US/security/advisories/mfsa2019-17
RHSA-2019:1623 https://access.redhat.com/errata/RHSA-2019:1623
RHSA-2019:1624 https://access.redhat.com/errata/RHSA-2019:1624
RHSA-2019:1626 https://access.redhat.com/errata/RHSA-2019:1626
USN-4028-1 https://usn.ubuntu.com/4028-1/
Data source Exploit-DB
Date added June 17, 2019
Description Thunderbird ESR < 60.7.XXX - Type Confusion
Ransomware campaign use Unknown
Source publication date June 17, 2019
Exploit type dos
Platform multiple
Source update date June 17, 2019
Source URL https://github.com/x41sec/advisories/tree/master/X41-2019-004
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-11706.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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L 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:L/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2019-11706
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:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-11706
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 0.88136
EPSS Score 0.04094
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:59.958398+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2019/mfsa2019-17.yml 37.0.0