CVE-2022-22636

Kernel code execution via AVEVideoEncoder bounds failure

Published Mar 18, 2022 · Updated Aug 3, 2024

Out-of-bounds write in Apple iOS, iPadOS, and tvOS before 15.4 allows local users to execute arbitrary code with kernel privileges. The AVEVideoEncoder component writes beyond a buffer because its bounds checks fail to reject an out-of-range operation; Apple has not published the affected function or input. Execution requires a locally run application, and successful exploitation escapes application privileges to execute code in the kernel.

CVSS severity7.8
High
EPSS probability1.04%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in Apple iOS, iPadOS, and tvOS before 15.4 allows local users to execute arbitrary code with kernel privileges. The AVEVideoEncoder component writes beyond a buffer because its bounds checks fail to reject an out-of-range operation; Apple has not published the affected function or input. Execution requires a locally run application, and successful exploitation escapes application privileges to execute code in the kernel.

The record

CVE
CVE-2022-22636
Published
Mar 18, 2022
Updated
Aug 3, 2024
Vendor
Apple
Product
iOS and iPadOS
Classifications
CWE-787, T1626
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 18, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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 vectorlocal
Required privilegesunauthenticated

What is affected?

Apple · iOS and iPadOSversion=unspecified <15.4
Apple · tvOSversion=unspecified <15.4

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1626Exploitation for Privilege Escalation

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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