CVE-2022-26716Network attack vector

Arbitrary code execution via WebKit memory corruption

Published Nov 1, 2022 · Updated May 6, 2025

Memory corruption in Apple WebKit on macOS Monterey before 12.4 and watchOS before 8.6 allows remote attackers to execute arbitrary code. WebKit manages internal state incorrectly while processing malicious web content, corrupting memory; Apple has not disclosed the affected function or object. A user must process attacker-controlled web content, and resulting code execution remains within the affected WebKit process rather than granting reported kernel privileges.

CVSS severity8.8
High
EPSS probability0.94%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in Apple WebKit on macOS Monterey before 12.4 and watchOS before 8.6 allows remote attackers to execute arbitrary code. WebKit manages internal state incorrectly while processing malicious web content, corrupting memory; Apple has not disclosed the affected function or object. A user must process attacker-controlled web content, and resulting code execution remains within the affected WebKit process rather than granting reported kernel privileges.

The record

CVE
CVE-2022-26716
Published
Nov 1, 2022
Updated
May 6, 2025
Vendor
Apple
Product
macOS
Classifications
CWE-787, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 1, 2022CVE publishedPublication date reported by the CVE source.
  2. May 6, 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 <12.4
  2. Affected versionversion=unspecified <15.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apple · macOSversion=unspecified <12.4; version=unspecified <15.5
Apple · watchOSversion=unspecified <15.5; version=unspecified <8.6

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-787Out-of-bounds Write
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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