CVE-2022-42813Network attack vector

Code execution via improper WKWebView certificate validation

Published Nov 1, 2022 · Updated Apr 22, 2025

Improper certificate validation in CFNetwork on macOS, tvOS, and watchOS allows remote attackers to execute code through WKWebView. The WKWebView path in CFNetwork fails to validate a malicious certificate correctly before processing it; Apple has not disclosed the exact faulty check. Exploitation requires an affected WKWebView to process an attacker-controlled certificate, after which code runs in the context of the consuming process.

CVSS severity9.8
Critical
EPSS probability1.00%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper certificate validation in CFNetwork on macOS, tvOS, and watchOS allows remote attackers to execute code through WKWebView. The WKWebView path in CFNetwork fails to validate a malicious certificate correctly before processing it; Apple has not disclosed the exact faulty check. Exploitation requires an affected WKWebView to process an attacker-controlled certificate, after which code runs in the context of the consuming process.

The record

CVE
CVE-2022-42813
Published
Nov 1, 2022
Updated
Apr 22, 2025
Vendor
Apple
Product
tvOS
Classifications
CWE-295, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 1, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 22, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <16.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apple · tvOSversion=unspecified <16.1
Apple · macOSversion=unspecified <13
Apple · watchOSversion=unspecified <9.1

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-295Improper Certificate Validation
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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