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Vulnerability details: VCID-8kgq-qhy6-e3c2
Vulnerability ID VCID-8kgq-qhy6-e3c2
Aliases CVE-2022-38476
Summary Multiple vulnerabilities have been discovered in Mozilla Firefox, the worst of which could result in arbitrary code execution.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-416 Use After Free
System Score Found at
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-38476.json
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2022-38476
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2022-38476
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2022-38476
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2022-38476
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2022-38476
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2022-38476
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2022-38476
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2022-38476
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2022-38476
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2022-38476
epss 0.00186 https://api.first.org/data/v1/epss?cve=CVE-2022-38476
epss 0.00198 https://api.first.org/data/v1/epss?cve=CVE-2022-38476
epss 0.00198 https://api.first.org/data/v1/epss?cve=CVE-2022-38476
epss 0.00198 https://api.first.org/data/v1/epss?cve=CVE-2022-38476
cvssv3.1 7.5 https://bugzilla.mozilla.org/show_bug.cgi?id=1760998
ssvc Track https://bugzilla.mozilla.org/show_bug.cgi?id=1760998
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2022-34
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2022-36
cvssv3.1 7.5 https://www.mozilla.org/security/advisories/mfsa2022-34/
ssvc Track https://www.mozilla.org/security/advisories/mfsa2022-34/
cvssv3.1 7.5 https://www.mozilla.org/security/advisories/mfsa2022-36/
ssvc Track https://www.mozilla.org/security/advisories/mfsa2022-36/
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-38476.json
https://api.first.org/data/v1/epss?cve=CVE-2022-38476
2120678 https://bugzilla.redhat.com/show_bug.cgi?id=2120678
GLSA-202208-37 https://security.gentoo.org/glsa/202208-37
GLSA-202208-38 https://security.gentoo.org/glsa/202208-38
mfsa2022-34 https://www.mozilla.org/en-US/security/advisories/mfsa2022-34
mfsa2022-34 https://www.mozilla.org/security/advisories/mfsa2022-34/
mfsa2022-36 https://www.mozilla.org/en-US/security/advisories/mfsa2022-36
mfsa2022-36 https://www.mozilla.org/security/advisories/mfsa2022-36/
RHSA-2022:6164 https://access.redhat.com/errata/RHSA-2022:6164
RHSA-2022:6165 https://access.redhat.com/errata/RHSA-2022:6165
RHSA-2022:6166 https://access.redhat.com/errata/RHSA-2022:6166
RHSA-2022:6167 https://access.redhat.com/errata/RHSA-2022:6167
RHSA-2022:6168 https://access.redhat.com/errata/RHSA-2022:6168
RHSA-2022:6169 https://access.redhat.com/errata/RHSA-2022:6169
RHSA-2022:6174 https://access.redhat.com/errata/RHSA-2022:6174
RHSA-2022:6175 https://access.redhat.com/errata/RHSA-2022:6175
RHSA-2022:6176 https://access.redhat.com/errata/RHSA-2022:6176
RHSA-2022:6177 https://access.redhat.com/errata/RHSA-2022:6177
RHSA-2022:6178 https://access.redhat.com/errata/RHSA-2022:6178
RHSA-2022:6179 https://access.redhat.com/errata/RHSA-2022:6179
show_bug.cgi?id=1760998 https://bugzilla.mozilla.org/show_bug.cgi?id=1760998
USN-5663-1 https://usn.ubuntu.com/5663-1/
No exploits are available.
Vector: CVSS:3.1/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-2022-38476.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://bugzilla.mozilla.org/show_bug.cgi?id=1760998
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: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-04-15T17:23:43Z/ Found at https://bugzilla.mozilla.org/show_bug.cgi?id=1760998
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://www.mozilla.org/security/advisories/mfsa2022-34/
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: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-04-15T17:23:43Z/ Found at https://www.mozilla.org/security/advisories/mfsa2022-34/
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://www.mozilla.org/security/advisories/mfsa2022-36/
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: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-04-15T17:23:43Z/ Found at https://www.mozilla.org/security/advisories/mfsa2022-36/
Exploit Prediction Scoring System (EPSS)
Percentile 0.40429
EPSS Score 0.00186
Published At April 2, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T13:00:28.772696+00:00 Gentoo Importer Import https://security.gentoo.org/glsa/202208-37 38.0.0