CVE-2021-30869 Vulnerability Analysis & Exploit Details

CVE-2021-30869
Vulnerability Scoring

7.8
/10
Very High Risk

Highly exploitable, CVE-2021-30869 poses a critical security risk that could lead to severe breaches.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Local
    Vulnerability requires local system access.
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: Required
    User interaction is necessary for successful exploitation.

CVE-2021-30869 Details

Status: Analyzed

Last updated: 🕗 13 Mar 2025, 20:02 UTC
Originally published on: 🕖 24 Aug 2021, 19:15 UTC

Time between publication and last update: 1297 days

CVSS Release: version 3

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVE-2021-30869 Vulnerability Summary

CVE-2021-30869: A type confusion issue was addressed with improved state handling. This issue is fixed in iOS 12.5.5, iOS 14.4 and iPadOS 14.4, macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, Security Update 2021-006 Catalina. A malicious application may be able to execute arbitrary code with kernel privileges. Apple is aware of reports that an exploit for this issue exists in the wild.

Assessing the Risk of CVE-2021-30869

Access Complexity Graph

The exploitability of CVE-2021-30869 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2021-30869

With low attack complexity and no required privileges, CVE-2021-30869 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2021-30869, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2021-30869, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: High
    Exploiting CVE-2021-30869 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: High
    CVE-2021-30869 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
  • Availability: High
    CVE-2021-30869 can disrupt system operations, potentially causing complete denial of service (DoS).

Exploit Prediction Scoring System (EPSS)

The EPSS score estimates the probability that this vulnerability will be exploited in the near future.

EPSS Score: 0.144% (probability of exploit)

EPSS Percentile: 51.75% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 48.25% of others.

CVE-2021-30869 References

External References

CWE Common Weakness Enumeration

CWE-843

Vulnerable Configurations

  • cpe:2.3:o:apple:ipados:-:*:*:*:*:*:*:*
    cpe:2.3:o:apple:ipados:-:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:ipados:12.1:*:*:*:*:*:*:*
    cpe:2.3:o:apple:ipados:12.1:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:ipados:12.1.1:*:*:*:*:*:*:*
    cpe:2.3:o:apple:ipados:12.1.1:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:ipados:12.1.3:*:*:*:*:*:*:*
    cpe:2.3:o:apple:ipados:12.1.3:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:ipados:12.2:*:*:*:*:*:*:*
    cpe:2.3:o:apple:ipados:12.2:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:ipados:12.3:*:*:*:*:*:*:*
    cpe:2.3:o:apple:ipados:12.3:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:ipados:12.4:*:*:*:*:*:*:*
    cpe:2.3:o:apple:ipados:12.4:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:ipados:13.1:*:*:*:*:*:*:*
    cpe:2.3:o:apple:ipados:13.1:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:ipados:13.1.1:*:*:*:*:*:*:*
    cpe:2.3:o:apple:ipados:13.1.1:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:ipados:13.1.2:*:*:*:*:*:*:*
    cpe:2.3:o:apple:ipados:13.1.2:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:ipados:13.1.3:*:*:*:*:*:*:*
    cpe:2.3:o:apple:ipados:13.1.3:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:ipados:13.2:*:*:*:*:*:*:*
    cpe:2.3:o:apple:ipados:13.2:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:ipados:13.2.2:*:*:*:*:*:*:*
    cpe:2.3:o:apple:ipados:13.2.2:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:ipados:13.2.3:*:*:*:*:*:*:*
    cpe:2.3:o:apple:ipados:13.2.3:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:ipados:13.3:*:*:*:*:*:*:*
    cpe:2.3:o:apple:ipados:13.3:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:ipados:13.3.1:*:*:*:*:*:*:*
    cpe:2.3:o:apple:ipados:13.3.1:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:ipados:13.4:*:*:*:*:*:*:*
    cpe:2.3:o:apple:ipados:13.4:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:ipados:13.5:*:*:*:*:*:*:*
    cpe:2.3:o:apple:ipados:13.5:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:ipados:13.5.1:*:*:*:*:*:*:*
    cpe:2.3:o:apple:ipados:13.5.1:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:ipados:13.6:*:*:*:*:*:*:*
    cpe:2.3:o:apple:ipados:13.6:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:ipados:14.0:*:*:*:*:*:*:*
    cpe:2.3:o:apple:ipados:14.0:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:ipados:14.2:*:*:*:*:*:*:*
    cpe:2.3:o:apple:ipados:14.2:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:ipados:14.3:*:*:*:*:*:*:*
    cpe:2.3:o:apple:ipados:14.3:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:12.0:*:*:*:*:*:*:*
    cpe:2.3:o:apple:iphone_os:12.0:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:12.0.0:*:*:*:*:*:*:*
    cpe:2.3:o:apple:iphone_os:12.0.0:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:12.0.1:*:*:*:*:*:*:*
    cpe:2.3:o:apple:iphone_os:12.0.1:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:12.1:*:*:*:*:*:*:*
    cpe:2.3:o:apple:iphone_os:12.1:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:12.1.1:*:*:*:*:*:*:*
    cpe:2.3:o:apple:iphone_os:12.1.1:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:12.1.2:*:*:*:*:*:*:*
    cpe:2.3:o:apple:iphone_os:12.1.2:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:12.1.3:*:*:*:*:*:*:*
    cpe:2.3:o:apple:iphone_os:12.1.3:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:12.1.4:*:*:*:*:*:*:*
    cpe:2.3:o:apple:iphone_os:12.1.4:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:12.2:*:*:*:*:*:*:*
    cpe:2.3:o:apple:iphone_os:12.2:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:12.3:*:*:*:*:*:*:*
    cpe:2.3:o:apple:iphone_os:12.3:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:12.3.1:*:*:*:*:*:*:*
    cpe:2.3:o:apple:iphone_os:12.3.1:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:12.3.2:*:*:*:*:*:*:*
    cpe:2.3:o:apple:iphone_os:12.3.2:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:12.4:*:*:*:*:*:*:*
    cpe:2.3:o:apple:iphone_os:12.4:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:12.4.1:*:*:*:*:*:*:*
    cpe:2.3:o:apple:iphone_os:12.4.1:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:12.4.3:*:*:*:*:*:*:*
    cpe:2.3:o:apple:iphone_os:12.4.3:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:12.4.4:*:*:*:*:*:*:*
    cpe:2.3:o:apple:iphone_os:12.4.4:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:12.4.7:*:*:*:*:*:*:*
    cpe:2.3:o:apple:iphone_os:12.4.7:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:12.4.9:*:*:*:*:*:*:*
    cpe:2.3:o:apple:iphone_os:12.4.9:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:12.5.2:*:*:*:*:*:*:*
    cpe:2.3:o:apple:iphone_os:12.5.2:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:12.5.3:*:*:*:*:*:*:*
    cpe:2.3:o:apple:iphone_os:12.5.3:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:12.5.4:*:*:*:*:*:*:*
    cpe:2.3:o:apple:iphone_os:12.5.4:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:14.0:*:*:*:*:*:*:*
    cpe:2.3:o:apple:iphone_os:14.0:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:14.2:*:*:*:*:*:*:*
    cpe:2.3:o:apple:iphone_os:14.2:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:14.3:*:*:*:*:*:*:*
    cpe:2.3:o:apple:iphone_os:14.3:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.14:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.14:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.14.0:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.14.0:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.14.1:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.14.1:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.14.2:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.14.2:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.14.3:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.14.3:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.14.4:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.14.4:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.14.4:beta4:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.14.4:beta4:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.14.5:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.14.5:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.14.6:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.14.6:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.14.6:-:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.14.6:-:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.15:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.15:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.15.1:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.15.1:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.15.2:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.15.2:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.15.3:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.15.3:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.15.4:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.15.4:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.15.5:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.15.5:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.15.6:*:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.15.6:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.15.6:-:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.15.6:-:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-001:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-001:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-002:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-002:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-004:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-004:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-005:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-005:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-006:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-006:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-007:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-007:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-001:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-001:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-002:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-002:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-003:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-003:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-004:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-004:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-005:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-005:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-006:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-006:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-007:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-007:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.15.7:-:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.15.7:-:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-005:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-005:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-007:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-007:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-002:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-002:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-003:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-003:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-004:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-004:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-005:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-005:*:*:*:*:*:*
  • cpe:2.3:o:apple:mac_os_x:10.15.7:supplemental_update:*:*:*:*:*:*
    cpe:2.3:o:apple:mac_os_x:10.15.7:supplemental_update:*:*:*:*:*:*
  • cpe:2.3:o:apple:macos:11.0:*:*:*:*:*:*:*
    cpe:2.3:o:apple:macos:11.0:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:macos:11.0.1:*:*:*:*:*:*:*
    cpe:2.3:o:apple:macos:11.0.1:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:macos:11.1:*:*:*:*:*:*:*
    cpe:2.3:o:apple:macos:11.1:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:macos:11.1.0:*:*:*:*:*:*:*
    cpe:2.3:o:apple:macos:11.1.0:*:*:*:*:*:*:*

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