CVE-2022-22620

Exp

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Monterey 12.2.1, iOS 15.3.1 and iPadOS 15.3.1, Safari 15.3 (v. 16612.4.9.1.8 and 15612.4.9.1.8). Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..

Published: 2022-03-18 Last update: 2025-10-23 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-22620 is rated Critical Active Threat (91/100): CVSS High severity, with medium exploitation likelihood (EPSS 4.02%). CISA KEV confirms active exploitation (added 2022-02-11) affecting Apple / iOS, iPadOS, and macOS. a weakness (CWE-416) Unauthenticated remote administrative access may be possible. The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2022-22620

Name: Apple iOS, iPadOS, and macOS Webkit Use-After-Free Vulnerability · CISA KEV detail

Exploit added: 2022-02-11

Action due: 2022-02-25

Required action: Apply updates per vendor instructions.

Exploit prediction scoring system (EPSS) score for CVE-2022-22620

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-27 4.13% 4.02% -0.11%
2 2026-03-21 4.02% 4.13% +0.11%
3 2025-12-03 — 4.02% —

Full EPSS history (27 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-22620

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2022-22620

OS Trackers for CVE-2022-22620

vendor priority summary link
alpine — CVE-2022-22620: 1 source package rows (webkit2gtk); 5 state rows across 5 repos (3.17-community, 3.18-community, 3.19-community, 3.20-community, edge-community); fixed 5, open 0. https://security.alpinelinux.org/vuln/CVE-2022-22620
debian not yet assigned CVE-2022-22620 not yet assigned priority: Debian including 2 source packages (webkit2gtk, wpewebkit), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 10. https://security-tracker.debian.org/tracker/CVE-2022-22620
gentoo high CVE-2022-22620: 1 GLSA(s) (202208-39), 1 atom(s) (net-libs/webkit-gtk); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2022-22620
redhat medium — https://access.redhat.com/security/cve/CVE-2022-22620
suse high CVE-2022-22620 severity important: SUSE including 139 source package names (WebKit2GTK-4.1-lang-2.36.0-150400.2.13, WebKit2GTK-5.0-lang-2.36.0-150400.2.12, …), 429 product×package rows across 60 product lines (HPE Helion OpenStack 8, SUSE CaaS Platform 4.0, … (60 product lines)): Fixed 427, Known Not Affected 2. https://www.suse.com/security/cve/CVE-2022-22620/
ubuntu medium CVE-2022-22620 medium priority: Ubuntu including 5 source packages (qtwebkit-opensource-src, qtwebkit-source, webkit2gtk, webkitgtk, wpewebkit), 55 status rows across 11 suites (bionic, focal, impish, jammy, kinetic, lunar, mantic, noble, trusty, upstream, xenial): DNE 25, ignored 19, released 8, needs-triage 3. https://ubuntu.com/security/CVE-2022-22620

Affected software / configurations for CVE-2022-22620

Vendor Product Version Raw CPE
apple safari < 15.3 cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
apple ipados < 15.3.1 cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple iphone_os < 15.3.1 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple macos >= 12.0.0, < 12.2.1 cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*

References for CVE-2022-22620

URL Tags
https://security.gentoo.org/glsa/202208-39 Third Party Advisory
https://support.apple.com/en-us/HT213091 Release Notes Vendor Advisory
https://support.apple.com/en-us/HT213092 Release Notes Vendor Advisory
https://support.apple.com/en-us/HT213093 Release Notes Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-22620 Third Party Advisory US Government Resource
cvelogic Threat Intelligence