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HIGH · 7.8

CVE-2021-1840

A memory corruption issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave. A local attacker may be...

Vulnerability Description

A memory corruption issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave. A local attacker may be able to elevate their privileges.

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
AppleMac Os X10.14
AppleMacos>= 11.0, < 11.3

Related Weaknesses (CWE)

CWE-787

References

FAQ

What is CVE-2021-1840?

CVE-2021-1840 is a vulnerability with a CVSS score of 7.8 (HIGH). A memory corruption issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave. A local attacker may be...

How severe is CVE-2021-1840?

CVE-2021-1840 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-1840?

Check the references section above for vendor advisories and patch information. Affected products include: Apple Mac Os X, Apple Macos.