CVE-2021-30717 json
A memory corruption issue was addressed with improved state management.
published 2021-09-08 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-17634
- cvss
- 8.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.0%
- EPSS 2.0% chance of exploitation in 30 days, percentile 81%
- public exploits
- 0
- none known
Summary
A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave. An attacker in a privileged network position may be able to execute arbitrary code.
Patch / fix
- Apple macOS 11.4, 2021
Exploit prediction
2.02% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Affected products
- Apple macOS
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
support.apple.com
/en-us/HT212529
release-notes, vendor-advisory
-
support.apple.com
/en-us/HT212530
release-notes, vendor-advisory
-
support.apple.com
/en-us/HT212531
release-notes, vendor-advisory
Sources
- CVE List CVE-2021-30717
- NVD CVE-2021-30717
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