Skip to main content
IMMUNITYSEC

CVE-2021-1782

7.0
HIGH
CVSS 3.1
EPSS 2.2% · 82nd pctCISA KEV · Exploited in the wild
2021-04-02•Updated 2025-10-21•KEV 2021-11-03
CISA Known Exploited Vulnerabilities

Apple Multiple Products Race Condition Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV
2021-11-03
Remediation due
2021-11-17

Required action
Apply updates per vendor instructions.

CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2021-1782

Description

A race condition was addressed with improved locking. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A malicious application may be able to elevate privileges. Apple is aware of a report that this issue may have been actively exploited..

Severity

CVSS 3.1 · CISA7 HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC · CISA-ADP
Exploitationactive
Automatableno
Technical impacttotal

Affected Products

VendorProductAffected versions
AppleiOS and iPadOS
unspecified to <14.4
ApplemacOS
unspecified to <11.2
ApplemacOS
unspecified to <7.3
ApplemacOS
unspecified to <14.4

References

4 Links

Record Details

Published
2021-04-02
Last updated
2025-10-21
Assigner (CNA)
apple
Credited to
-

More from Apple

CVE-2021-308607.8

Apple Multiple Products Integer Overflow Vulnerability

CVE-2021-306575.5

Apple macOS Unspecified Vulnerability

CVE-2023-410647.8

Apple iOS, iPadOS, and macOS ImageIO Buffer Overflow Vulnerability

CVE-2023-324347.8

Apple Multiple Products Integer Overflow Vulnerability

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.