CVE-2022-22620

HIGH

8.8

CVSS Score

Published: March 18, 2022 at 05:59 PM UTC

Updated: June 17, 2026 at 04:28 AM UTC

4 products affected across 1 vendormacOSiPhone OSiPadOS

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Severity

HIGH8.8

Exploitation

CISA KEV

Exploit prediction

EPSS 16%

SSVC

Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score16.3%

EPSS (Exploit Prediction Scoring System) estimates a 16.3% chance this CVE is exploited in the wild within the next 30 days — higher than 97% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

Apple iOS, iPadOS, and macOS WebKit contain a use-after-free vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

Required Action

Apply updates per vendor instructions.

Ransomware Use

Unknown

Added to KEV

Feb 11, 2022

Remediation Due

Feb 25, 2022

1708 days overdue

Notes

https://nvd.nist.gov/vuln/detail/CVE-2022-22620

Description

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..

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

iPadOS · Apple

95%

v < 15.3.1

Affected range stops below 15.3.1, so it looks safe — our inference, not a vendor statement

iPhone OS · Apple

95%

v < 15.3.1

Affected range stops below 15.3.1, so it looks safe — our inference, not a vendor statement

macOS · Apple

95%

v < 12.2v < 15.312.0.0 ≤ v < 12.2.1

Affected range stops below 12.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.2.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.3, so it looks safe — our inference, not a vendor statement

Safari · Apple

95%

v < 15.3

Affected range stops below 15.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (5)

Vendor Advisoryx_refsource_GENTOOThird Party Advisory

Source: [email protected]

https://security.gentoo.org/glsa/202208-39

x_refsource_MISCRelease NotesVendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213091

x_refsource_MISCRelease NotesVendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213092

x_refsource_MISCRelease NotesVendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213093

Third Party AdvisoryUS Government Resource

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-22620

SSVC — Action Prioritization

SSVCActiveNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHCISA-ADP

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

CWE-416

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