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CVE-2021-30663

Date: September 8, 2021

An integer overflow was addressed with improved input validation. This issue is fixed in iOS 14.5.1 and iPadOS 14.5.1, tvOS 14.6, iOS 12.5.3, Safari 14.1.1, macOS Big Sur 11.3.1. Processing maliciously crafted web content may lead to arbitrary code execution.

Severity Score

Related Resources (11)

https://people.canonical.com/~ubuntu-security/cve/CVE-2021-30663
https://access.redhat.com/security/cve/CVE-2021-30663
https://support.apple.com/en-us/HT212341
https://nvd.nist.gov/vuln/detail/CVE-2021-30663
https://security-tracker.debian.org/tracker/CVE-2021-30663
https://support.apple.com/en-us/HT212532
https://security.alpinelinux.org/vuln/CVE-2021-30663
https://support.apple.com/en-us/HT212335
https://support.apple.com/en-us/HT212534
https://support.apple.com/en-us/HT212336
https://www.mend.io/vulnerability-database/CVE-2021-30663

Severity Score

Weakness Type (CWE)

Integer Overflow or Wraparound

CWE-190

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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