Home/CVE/An integer overflow was addressed through improved input validation. This issue is fixed in iOS 14.7, macOS Big Sur 11.5
CVE

CVE-2021-30760

An integer overflow was addressed through improved input validation. This issue is fixed in iOS 14.7, macOS Big Sur 11.5

An integer overflow was addressed through improved input validation. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7, Security Update 2021-005 Mojave, Security Update 2021-004 Catalina. Processing a maliciously crafted font file may lead to arbitrary code execution.

HIGH · CVSS 7.8 EPSS 0.00447
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-190Integer Overflow or Wraparound
▤

Affected Products & Versions

6
apple ipados< 14.7
apple iphone os< 14.7
apple mac os xall versions
apple macos>= 11.0 and < 11.5
apple tvos< 14.7
apple watchos< 7.6
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · product-security@apple.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD08 Sep 2021 · 02:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://support.apple.com/en-us/HT212600Vendor Advisory
https://support.apple.com/en-us/HT212601Vendor Advisory
https://support.apple.com/en-us/HT212602Vendor Advisory
https://support.apple.com/en-us/HT212603Vendor Advisory
https://support.apple.com/en-us/HT212604Vendor Advisory
https://support.apple.com/en-us/HT212605Vendor Advisory
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