CVE-2022-26698

Process-memory disclosure via AppleScript SCPT parser over-read

Published May 26, 2022 · Updated Aug 3, 2024

Out-of-bounds read in AppleScript in affected Apple macOS releases allows context-dependent attackers to disclose process memory via an SCPT file. The AppleScript framework parses crafted SCPT data by reading past the end of an allocated data structure. Exploitation requires a user to visit malicious content or open the file and can expose process memory or terminate the parsing application.

CVSS severity7.1
High
EPSS probability0.96%
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 read in AppleScript in affected Apple macOS releases allows context-dependent attackers to disclose process memory via an SCPT file. The AppleScript framework parses crafted SCPT data by reading past the end of an allocated data structure. Exploitation requires a user to visit malicious content or open the file and can expose process memory or terminate the parsing application.

The record

CVE
CVE-2022-26698
Published
May 26, 2022
Updated
Aug 3, 2024
Vendor
Apple
Product
Security Update Catalina
Classifications
CWE-125, T1204.002
Attack vector
local
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 <2022

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Apple · Security Update Catalinaversion=unspecified <2022
Apple · macOSversion=unspecified <11.6; version=unspecified <12.4

Published CVSS scores

5.8NIST NVDAV:N/AC:M/Au:N/C:P/I:N/A:P
7.1NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/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.

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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-125Out-of-bounds Read
T1204.002User Execution: Malicious File

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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