CISA KEV · Known exploitedHigh

CVE-2020-9859

Apple Multiple Products

A memory consumption issue was addressed with improved memory handling. This issue is fixed in iOS 13.5.1 and iPadOS 13.5.1, macOS Catalina 10.15.5 Supplemental Update, tvOS 13.4.6, watchOS 6.2.6. An application may be able to execute arbitrary code with kernel privileges.

CVSS
7.8
EPSS
0.83%
54.0% percentile
CISA KEV
Listed
Published
2020.06.06
PRIORITY ASSESSMENT

Immediate review

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

Known exploitationConfirmed by CISA KEV
Exploit probability0.83%
Technical severityCVSS 7.8

Vulnerability overview

A memory consumption issue was addressed with improved memory handling. This issue is fixed in iOS 13.5.1 and iPadOS 13.5.1, macOS Catalina 10.15.5 Supplemental Update, tvOS 13.4.6, watchOS 6.2.6. An application may be able to execute arbitrary code with kernel privileges.

Affected product and versions

Product
Apple Multiple Products
Affected versions
unspecified, < 13.5.1, < 10.15.5, < 13.4.6, < 6.2.6
Fixed versions
13.5.1, 10.15.5, 13.4.6, 6.2.6

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA required action

Apply updates per vendor instructions.

Due date: 2022.05.03
  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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-415
KEV added
2021.11.03
Ransomware use
미확인
CVE-2020-9859 — Apple Multiple Products | SECUFOCUS NOW