CVE-2021-30984

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

1.66% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 74.8% 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:H/PR:N/UI:R/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

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

2021-08-24 18:51Z5 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-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class

Data version

5.1

Document digest

3e9a6b4138305b2c25900e9338de8067e87b61af3f36e6813e2be4462047fc70

• support.apple.comhttps://support.apple.com/en-us/HT212975x_refsource_MISC
• support.apple.comhttps://support.apple.com/en-us/HT212976x_refsource_MISC
• support.apple.comhttps://support.apple.com/en-us/HT212978x_refsource_MISC
• support.apple.comhttps://support.apple.com/en-us/HT212980x_refsource_MISC
• support.apple.comhttps://support.apple.com/en-us/HT212982x_refsource_MISC
• www.openwall.com[oss-security] 20220121 WebKitGTK and WPE WebKit Security Advisory WSA-2022-0001http://www.openwall.com/lists/oss-security/2022/01/21/2mailing-listx_refsource_MLIST
• lists.fedoraproject.orgFEDORA-2022-25a98f5d55https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7EQVZ3CEMTINLBZ7PBC7WRXVEVCRHNSM/vendor-advisoryx_refsource_FEDORA
• www.debian.orgDSA-5061https://www.debian.org/security/2022/dsa-5061vendor-advisoryx_refsource_DEBIAN
• www.debian.orgDSA-5060https://www.debian.org/security/2022/dsa-5060vendor-advisoryx_refsource_DEBIAN
• lists.fedoraproject.orgFEDORA-2022-f7366e60cbhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HQKWD4BXRDD2YGR5AVU7H5J5PIQIEU6V/vendor-advisoryx_refsource_FEDORA