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7.5
CVSSv3

CVE-2021-30660

Published: 08/09/2021 Updated: 20/09/2021
CVSS v2 Base Score: 7.8 | Impact Score: 6.9 | Exploitability Score: 10
CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9
VMScore: 695
Vector: AV:N/AC:L/Au:N/C:C/I:N/A:N
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Vulnerability Summary

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. A malicious application may be able to disclose kernel memory.

Vulnerability Trend

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apple ipados

apple iphone os

apple macos

apple tvos

apple watchos

Mailing Lists

Full Disclosure: APPLE-SA-2021-04-26-5 watchOS 7.4
<!--X-Body-Begin--> <!--X-User-Header--> Full Disclosure mailing list archives <!--X-User-Header-End--> <!--X-TopPNI--> By Date By Thread </form> <!--X-TopPNI-End--> <!--X-MsgBody--> <!--X-Subject-Header-Begin--> APPLE-SA-2021-04-26-5 watchOS 74 <!--X-Subject-Header-End--> <!--X-Head-of-Message--> From: Apple Product Security ...
Full Disclosure: APPLE-SA-2021-04-26-1 iOS 14.5 and iPadOS 14.5
<!--X-Body-Begin--> <!--X-User-Header--> Full Disclosure mailing list archives <!--X-User-Header-End--> <!--X-TopPNI--> By Date By Thread </form> <!--X-TopPNI-End--> <!--X-MsgBody--> <!--X-Subject-Header-Begin--> APPLE-SA-2021-04-26-1 iOS 145 and iPadOS 145 <!--X-Subject-Header-End--> <!--X-Head-of-Message--> From: Apple Prod ...
Full Disclosure: APPLE-SA-2021-04-26-2 macOS Big Sur 11.3
<!--X-Body-Begin--> <!--X-User-Header--> Full Disclosure mailing list archives <!--X-User-Header-End--> <!--X-TopPNI--> By Date By Thread </form> <!--X-TopPNI-End--> <!--X-MsgBody--> <!--X-Subject-Header-Begin--> APPLE-SA-2021-04-26-2 macOS Big Sur 113 <!--X-Subject-Header-End--> <!--X-Head-of-Message--> From: Apple Product Se ...

References

CWE-125https://support.apple.com/en-us/HT212317https://support.apple.com/en-us/HT212325https://support.apple.com/en-us/HT212323https://support.apple.com/en-us/HT212324https://nvd.nist.govhttp://seclists.org/fulldisclosure/2021/Apr/56
CVSSv3
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2022-48654CVE-2024-2757authentication bypassCVE-2024-3194CVE-2024-33640CVE-2024-21111dosinsecure direct object referenceCVE-2024-21345
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