CVE-2022-22637Network attack vector

Cross-origin behavior via incorrect state management

Published Sep 23, 2022 · Updated May 22, 2025

Origin validation error in Safari before 15.4, tvOS before 15.4, and watchOS before 8.5 allows remote attackers to cause cross-origin behavior. Apple identifies incorrect WebKit state management but has not published the affected state transition or the origin check it bypasses. A user must visit attacker-controlled web content; public vendor material does not specify whether the result exposes or modifies cross-origin data.

CVSS severity8.8
High
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Origin validation error in Safari before 15.4, tvOS before 15.4, and watchOS before 8.5 allows remote attackers to cause cross-origin behavior. Apple identifies incorrect WebKit state management but has not published the affected state transition or the origin check it bypasses. A user must visit attacker-controlled web content; public vendor material does not specify whether the result exposes or modifies cross-origin data.

The record

CVE
CVE-2022-22637
Published
Sep 23, 2022
Updated
May 22, 2025
Vendor
Apple
Product
Safari
Classifications
CWE-346, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 23, 2022CVE publishedPublication date reported by the CVE source.
  2. May 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 <15.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apple · Safariversion=unspecified <15.4
Apple · tvOSversion=unspecified <12.3; version=unspecified <15.4
Apple · watchOSversion=unspecified <8.5

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-346Origin Validation Error
T1189Drive-by Compromise

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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