CVE-2021-30869 KEV
7.8
HIGH · CVSS 3.1 · EPSS 4.1% (pctl 90)
Patch first
On CISA KEV — known exploited in the wild, due 2021-11-17.
Description
A type confusion issue was addressed with improved state handling. This issue is fixed in iOS 12.5.5, iOS 14.4 and iPadOS 14.4, macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, Security Update 2021-006 Catalina. A malicious application may be able to execute arbitrary code with kernel privileges. Apple is aware of reports that an exploit for this issue exists in the wild.
Scoring
| CVSS | 7.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| EPSS | 4.14% — more likely to be exploited than 90% of all CVEs |
| Weakness | CWE-843 |
| On CISA KEV | yes — remediate by 2021-11-17 |
| Public exploit | none known |
| Published | 2021-08-24 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | Apple iOS, iPadOS, and macOS Type Confusion Vulnerability |
|---|---|
| Added | 2021-11-03 |
| Due | 2021-11-17 |
| Vendor / product | Apple / iOS, iPadOS, and macOS |
| Ransomware use | none reported |
Affected (4)
| Vendor | Product |
|---|---|
| apple | ipados |
| apple | iphone os |
| apple | mac os x |
| apple | macos |
References
- https://support.apple.com/en-us/HT212146
- https://support.apple.com/en-us/HT212147
- https://support.apple.com/en-us/HT212824
- https://support.apple.com/en-us/HT212825
- https://support.apple.com/en-us/HT212146
- https://support.apple.com/en-us/HT212147
- https://support.apple.com/en-us/HT212824
- https://support.apple.com/en-us/HT212825
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30869
→ the Explorer · watch your stack · NVD