CVE-2021-30844

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

1.80% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 76.5% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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.

Published

2021-10-19 13:11Z4 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

• CWE-401Missing Release of Memory after Effective LifetimeVariant

Data version

5.1

Document digest

040768857c6a2ca0445147fcec35f6ec59479ccb73480e58f8991bf3601b7e9f

• support.apple.comhttps://support.apple.com/en-us/HT212804x_refsource_MISC
• support.apple.comhttps://support.apple.com/en-us/HT212805x_refsource_MISC
• support.apple.comhttps://support.apple.com/kb/HT212871x_refsource_CONFIRM
• support.apple.comhttps://support.apple.com/kb/HT212872x_refsource_CONFIRM