Search for vulnerabilities
Vulnerability details: VCID-g3s1-p68k-aaan
Vulnerability ID VCID-g3s1-p68k-aaan
Aliases CVE-2019-9795
Summary A vulnerability where type-confusion in the IonMonkey just-in-time (JIT) compiler could potentially be used by malicious JavaScript to trigger a potentially exploitable crash. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-617 Reachable Assertion
CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')
CWE-787 Out-of-bounds Write
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-9795.html
cvssv3 9.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-9795.json
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00756 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00761 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00761 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00761 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00761 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00761 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00761 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00761 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00761 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00761 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00761 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00761 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00761 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00761 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00761 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00761 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00892 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00892 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00892 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00892 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00892 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00892 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00892 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00892 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00892 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00892 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00892 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00892 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00892 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00892 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.00892 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.01163 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.01163 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.01163 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.01163 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.01163 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.01163 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.01163 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.01163 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.01163 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.01163 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.01163 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.01163 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.01163 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.01163 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.01163 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.01163 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.01163 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.01163 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.01163 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
epss 0.03194 https://api.first.org/data/v1/epss?cve=CVE-2019-9795
rhbs high https://bugzilla.redhat.com/show_bug.cgi?id=1690680
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18506
generic_textual Negligible https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9788
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9790
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9791
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9792
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9793
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9795
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9796
cvssv3 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2019-9795
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2019-9795
archlinux Critical https://security.archlinux.org/AVG-925
generic_textual Low https://ubuntu.com/security/notices/USN-3918-1
generic_textual Low https://ubuntu.com/security/notices/USN-3918-2
generic_textual Medium https://ubuntu.com/security/notices/USN-3927-1
generic_textual Low https://usn.ubuntu.com/usn/usn-3918-1
generic_textual Low https://usn.ubuntu.com/usn/usn-3918-2
generic_textual Medium https://usn.ubuntu.com/usn/usn-3927-1
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2019-07
generic_textual Medium https://www.mozilla.org/en-US/security/advisories/mfsa2019-07/#CVE-2019-9795
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2019-08
generic_textual Medium https://www.mozilla.org/en-US/security/advisories/mfsa2019-08/#CVE-2019-9795
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2019-11
generic_textual Medium https://www.mozilla.org/en-US/security/advisories/mfsa2019-11/#CVE-2019-9795
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-9795.html
https://access.redhat.com/errata/RHSA-2019:0966
https://access.redhat.com/errata/RHSA-2019:1144
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-9795.json
https://api.first.org/data/v1/epss?cve=CVE-2019-9795
https://bugzilla.mozilla.org/show_bug.cgi?id=1514682
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18506
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9788
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9790
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9791
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9792
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9793
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9795
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9796
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://ubuntu.com/security/notices/USN-3918-1
https://ubuntu.com/security/notices/USN-3918-2
https://ubuntu.com/security/notices/USN-3927-1
https://usn.ubuntu.com/usn/usn-3918-1
https://usn.ubuntu.com/usn/usn-3918-2
https://usn.ubuntu.com/usn/usn-3927-1
https://www.mozilla.org/en-US/security/advisories/mfsa2019-07/#CVE-2019-9795
https://www.mozilla.org/en-US/security/advisories/mfsa2019-08/#CVE-2019-9795
https://www.mozilla.org/en-US/security/advisories/mfsa2019-11/#CVE-2019-9795
https://www.mozilla.org/security/advisories/mfsa2019-07/
https://www.mozilla.org/security/advisories/mfsa2019-08/
https://www.mozilla.org/security/advisories/mfsa2019-11/
1690680 https://bugzilla.redhat.com/show_bug.cgi?id=1690680
ASA-201903-11 https://security.archlinux.org/ASA-201903-11
AVG-925 https://security.archlinux.org/AVG-925
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:*:*:*:*:*:*:*:*
CVE-2019-9795 https://nvd.nist.gov/vuln/detail/CVE-2019-9795
mfsa2019-07 https://www.mozilla.org/en-US/security/advisories/mfsa2019-07
mfsa2019-08 https://www.mozilla.org/en-US/security/advisories/mfsa2019-08
mfsa2019-11 https://www.mozilla.org/en-US/security/advisories/mfsa2019-11
USN-3918-1 https://usn.ubuntu.com/3918-1/
USN-3918-2 https://usn.ubuntu.com/3918-2/
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-2019-9795.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: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:L/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2019-9795
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-2019-9795
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 0.71963
EPSS Score 0.00756
Published At May 7, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.