CVE-2021-30883
A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15.0.2 and iPadOS 15.0.2, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, tvOS 15.1, watchOS 8.1, macOS Big Sur 11.6.1. An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited..
Key facts
- CVSS score
- 7.8 (v3.1)
- Severity
- HIGH
- CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H- Weakness (CWE)
- CWE-787
- EPSS score
- 14.7% (97th percentile)
- In CISA KEV
- Yes, added May 23, 2022
- In EU EUVD
- Yes (EUVD-2021-17800)
- Published
- August 24, 2021
- NVD last modified
- June 17, 2026
- Status
- Analyzed
CISA Known Exploited Vulnerability
Apple Multiple Products Memory Corruption Vulnerability
Added to the KEV catalog on May 23, 2022; federal remediation due June 13, 2022.
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2021-17800 in the EU Vulnerability Database. ENISA flags it as known exploited. Last updated in EUVD on October 21, 2025.
View on the EU Vulnerability DatabaseAffected products
- apple / ipados
- apple / iphone os
- apple / macos
- apple / macos
- apple / tvos
- apple / watchos
Certified products that may be affected
5 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.
- Strong customer authentication pour Apple Pay sur Apple Watch série 4 exécutant watchOS 7.4.1 (Version 18T201) - Apple Inc. - Common Criteria ANSSI-CC-2023/13 - active
- Strong Customer Authentication pour Apple Pay, sur MacBook Air 2020 avec M1 exécutant macOS Big Sur 11.3.1 - Apple Inc. - Common Criteria ANSSI-CC-2022/44 - active
- Strong Customer Authentication pour Apple Pay sur iPhone SE (de seconde génération) exécutant iOS 14.5.1 Version 18E212 - Apple Inc. - Common Criteria ANSSI-CC-2022/05 - active
- Strong Customer Authentication pour Apple Pay sur iPhone (SoC A12 Bionic) exécutant iOS 14.5.1 Version 18E212 - Apple Inc. - Common Criteria ANSSI-CC-2022/04 - active
- Apple macOS 11 Big Sur: Contacts - Apple Inc. - Common Criteria CCEVS-VR-VID-11243-2022 - archived
References
- https://support.apple.com/en-us/HT212846(Vendor Advisory)
- https://support.apple.com/en-us/HT212868(Vendor Advisory)
- https://support.apple.com/en-us/HT212869(Vendor Advisory)
- https://support.apple.com/en-us/HT212872(Vendor Advisory)
- https://support.apple.com/en-us/HT212874(Vendor Advisory)
- https://support.apple.com/en-us/HT212876(Vendor Advisory)
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30883(US Government Resource)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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