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CISA KEV · Known exploitedHigh

CVE-2019-8506

Apple Multiple Products

A type confusion issue was addressed with improved memory handling. This issue is fixed in iOS 12.2, tvOS 12.2, watchOS 5.2, Safari 12.1, iTunes 12.9.4 for Windows, iCloud for Windows 7.11. Processing maliciously crafted web content may lead to arbitrary code execution.

CVSS
8.8
EPSS
18.1%
96.9% percentile
CISA KEV
Listed
Published
2019.12.19
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability18.1%
Technical severityCVSS 8.8

Vulnerability overview

A type confusion issue was addressed with improved memory handling. This issue is fixed in iOS 12.2, tvOS 12.2, watchOS 5.2, Safari 12.1, iTunes 12.9.4 for Windows, iCloud for Windows 7.11. Processing maliciously crafted web content may lead to arbitrary code execution.

Affected product and versions

Product
Apple Multiple Products
Affected versions
unspecified, < 7.11, < 12.9.4, < 12.1, < 12.2, < 5.2, 7.0
Fixed versions
7.11, 12.9.4, 12.1, 12.2, 5.2

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA required action

Apply updates per vendor instructions.

Due date: 2022.05.25
  1. 1
    Identify

    Confirm that Apple Multiple Products and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
CWE-843
KEV added
2022.05.04
Ransomware use
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