CVE-2022-22673Network attack vector

Denial of service in Notes

Published May 26, 2022 · Updated Aug 3, 2024

Denial of service in Notes in Apple iOS and iPadOS before 15.5 allows remote attackers to interrupt Notes by supplying a large input. Apple has not published the affected Notes code path or the check that mishandles the untrusted input. Exploitation requires Notes to process an oversized input; the documented consequence is service interruption, with no disclosed data access or code execution.

CVSS severity7.5
High
EPSS probability0.99%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Notes in Apple iOS and iPadOS before 15.5 allows remote attackers to interrupt Notes by supplying a large input. Apple has not published the affected Notes code path or the check that mishandles the untrusted input. Exploitation requires Notes to process an oversized input; the documented consequence is service interruption, with no disclosed data access or code execution.

The record

CVE
CVE-2022-22673
Published
May 26, 2022
Updated
Aug 3, 2024
Vendor
Apple
Product
iOS and iPadOS
Classifications
T1642
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 26, 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 <15.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apple · iOS and iPadOSversion=unspecified <15.5

Published CVSS scores

5.0NVDAV:N/AC:L/Au:N/C:N/I:N/A:P
7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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

T1642Endpoint Denial of Service

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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