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CVE-2021-30952: Apple Multiple Products Integer Overflow or Wraparound Vulnerability
Apple Multiple Products · in CISA KEV since 2026-03-05
2026-03-05added to KEV
2026-03-26federal remediation due date
6.96%EPSS exploit probability (30 days) 93.8th percentile
7.8 HIGHCVSS 3.1
Unknownknown ransomware use
1,654days from NVD publication to KEV
What it is
Apple tvOS, macOS, Safari, iPadOS and watchOS contain an integer overflow or wraparound vulnerability due to the processing of maliciously crafted web content that may lead to arbitrary code execution.
Required action (CISA)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
| CWE | CWE-190 |
|---|---|
| CVSS vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD published | 2021-08-24 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2021-30952.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.
Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.