synced 13 MIN AGO
01 Record

CVE-2021-30853

This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.6. A malicious application may bypass Gatekeeper checks.

UnratedPUBLISHEDCNA: apple
CNA base scoreUnratedNo CNA CVSS vector
View raw JSON

02 Description

This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.6. A malicious application may bypass Gatekeeper checks.

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
6.94% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 94.0% of scored records. A rank, not a probability.
NVD base score
5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-08-24 18:49Z5 YR AGO
Last updated
2024-08-03 22:48Z2 YR AGO
Reserved
2021-04-13
Assigning CNA
apple
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
Data version
5.1
Document digest
ae3c4c6071a2d4c24b93096cd1622412c8dc5d31dc0a0a6b23d7b936ca8924ca

05 Affected products

VendorProductVersionsPlatforms
ApplemacOS< 11.6—

06 References