Known Exploited Vulnerability
7.8
HIGH
CVE-2021-30883
Apple Multiple Products Memory Corruption Vulnerab - [Actively Exploited]
Description

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..

INFO

Published Date :

Aug. 24, 2021, 7:15 p.m.

Last Modified :

July 2, 2024, 5:03 p.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

Apple iOS, macOS, watchOS, and tvOS contain a memory corruption vulnerability that could allow for remote code execution.

Required Action :

Apply updates per vendor instructions.

Public PoC/Exploit Available at Github

CVE-2021-30883 has a 6 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-30883 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Apple macos
2 Apple iphone_os
3 Apple tvos
4 Apple watchos
5 Apple ipad_os
6 Apple ipados
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-30883.

URL Resource
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

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.

cisa-kev vulnerability 0day cisa exploits

Updated: 2 months, 2 weeks ago
516 stars 32 fork 32 watcher
Born at : April 19, 2022, 8:58 a.m. This repo has been linked 1181 different CVEs too.

Gexo is an ????-tethered (probably has to be rootless) iOS 15, 15.0.1, ~~15.0.2~~, 15.1 Beta 3, 15.1, & 15.1.1 jailbreak

Updated: 4 months, 4 weeks ago
1 stars 0 fork 0 watcher
Born at : Dec. 27, 2021, 4:43 p.m. This repo has been linked 2 different CVEs too.

None

C

Updated: 3 years ago
0 stars 0 fork 0 watcher
Born at : Oct. 27, 2021, 5:01 p.m. This repo has been linked 1 different CVEs too.

None

C

Updated: 3 years, 1 month ago
0 stars 0 fork 0 watcher
Born at : Oct. 15, 2021, 4:35 p.m. This repo has been linked 1 different CVEs too.

None

C

Updated: 3 months, 1 week ago
147 stars 18 fork 18 watcher
Born at : Oct. 11, 2021, 7:20 p.m. This repo has been linked 1 different CVEs too.

Here is some resources about macOS/iOS system security.

Updated: 2 months, 3 weeks ago
496 stars 49 fork 49 watcher
Born at : Aug. 26, 2020, 8:21 a.m. This repo has been linked 166 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-30883 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-30883 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Modified Analysis by [email protected]

    Jul. 02, 2024

    Action Type Old Value New Value
    Changed Reference Type https://support.apple.com/en-us/HT212846 No Types Assigned https://support.apple.com/en-us/HT212846 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT212868 No Types Assigned https://support.apple.com/en-us/HT212868 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT212869 No Types Assigned https://support.apple.com/en-us/HT212869 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT212872 No Types Assigned https://support.apple.com/en-us/HT212872 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT212874 No Types Assigned https://support.apple.com/en-us/HT212874 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT212876 No Types Assigned https://support.apple.com/en-us/HT212876 Vendor Advisory
    Changed CPE Configuration OR *cpe:2.3:o:apple:ipad_os:*:*:*:*:*:*:*:* versions up to (excluding) 14.8.1 *cpe:2.3:o:apple:ipados:15.0:*:*:*:*:*:*:* *cpe:2.3:o:apple:ipados:15.0.1:*:*:*:*:*:*:* *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 14.8.1 *cpe:2.3:o:apple:iphone_os:15.0:*:*:*:*:*:*:* *cpe:2.3:o:apple:iphone_os:15.0.1:*:*:*:*:*:*:* *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions from (including) 11.0 up to (excluding) 11.6.1 *cpe:2.3:o:apple:macos:12.0:*:*:*:*:*:*:* *cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* versions up to (excluding) 15.1 *cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* versions up to (excluding) 8.1 OR *cpe:2.3:o:apple:ipad_os:*:*:*:*:*:*:*:* versions up to (excluding) 14.8.1 *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions from (including) 15.0 up to (excluding) 15.0.2 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 14.8.1 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions from (including) 15.0 up to (excluding) 15.0.2 *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions from (including) 11.0 up to (excluding) 11.6.1 *cpe:2.3:o:apple:macos:12.0:*:*:*:*:*:*:* *cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* versions up to (excluding) 15.1 *cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* versions up to (excluding) 8.1
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference Apple Inc. https://support.apple.com/en-us/HT212869 [No types assigned]
    Added Reference Apple Inc. https://support.apple.com/en-us/HT212872 [No types assigned]
    Added Reference Apple Inc. https://support.apple.com/en-us/HT212846 [No types assigned]
    Added Reference Apple Inc. https://support.apple.com/en-us/HT212868 [No types assigned]
    Added Reference Apple Inc. https://support.apple.com/en-us/HT212874 [No types assigned]
    Added Reference Apple Inc. https://support.apple.com/en-us/HT212876 [No types assigned]
    Removed Reference MITRE https://support.apple.com/en-us/HT212876
    Removed Reference MITRE https://support.apple.com/en-us/HT212874
    Removed Reference MITRE https://support.apple.com/en-us/HT212846
    Removed Reference MITRE https://support.apple.com/en-us/HT212868
    Removed Reference MITRE https://support.apple.com/en-us/HT212869
    Removed Reference MITRE https://support.apple.com/en-us/HT212872
  • CVE Source Update by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Changed Source MITRE Apple Inc.
  • CPE Deprecation Remap by [email protected]

    Jan. 09, 2023

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:o:apple:ipad_os:15.0.1:*:*:*:*:*:*:* OR *cpe:2.3:o:apple:ipados:15.0.1:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jan. 09, 2023

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:o:apple:ipad_os:15.0:*:*:*:*:*:*:* OR *cpe:2.3:o:apple:ipados:15.0:*:*:*:*:*:*:*
  • Initial Analysis by [email protected]

    Nov. 01, 2021

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:C/I:C/A:C)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Changed Reference Type https://support.apple.com/en-us/HT212846 No Types Assigned https://support.apple.com/en-us/HT212846 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT212868 No Types Assigned https://support.apple.com/en-us/HT212868 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT212869 No Types Assigned https://support.apple.com/en-us/HT212869 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT212872 No Types Assigned https://support.apple.com/en-us/HT212872 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT212874 No Types Assigned https://support.apple.com/en-us/HT212874 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT212876 No Types Assigned https://support.apple.com/en-us/HT212876 Vendor Advisory
    Added CWE NIST CWE-787
    Added CPE Configuration OR *cpe:2.3:o:apple:ipad_os:*:*:*:*:*:*:*:* versions up to (excluding) 14.8.1 *cpe:2.3:o:apple:ipad_os:15.0:*:*:*:*:*:*:* *cpe:2.3:o:apple:ipad_os:15.0.1:*:*:*:*:*:*:* *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 14.8.1 *cpe:2.3:o:apple:iphone_os:15.0:*:*:*:*:*:*:* *cpe:2.3:o:apple:iphone_os:15.0.1:*:*:*:*:*:*:* *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions from (including) 11.0 up to (excluding) 11.6.1 *cpe:2.3:o:apple:macos:12.0:*:*:*:*:*:*:* *cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* versions up to (excluding) 15.1 *cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* versions up to (excluding) 8.1
  • CVE Modified by [email protected]

    Oct. 28, 2021

    Action Type Old Value New Value
    Changed Description ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by the CVE program. Notes: none. 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..
    Added Reference https://support.apple.com/en-us/HT212876 [No Types Assigned]
    Added Reference https://support.apple.com/en-us/HT212874 [No Types Assigned]
    Added Reference https://support.apple.com/en-us/HT212846 [No Types Assigned]
    Added Reference https://support.apple.com/en-us/HT212868 [No Types Assigned]
    Added Reference https://support.apple.com/en-us/HT212869 [No Types Assigned]
    Added Reference https://support.apple.com/en-us/HT212872 [No Types Assigned]
  • CVE Unrejected by [email protected]

    Oct. 28, 2021

    Action Type Old Value New Value
  • CVE Rejected by [email protected]

    Aug. 24, 2021

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-30883 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-30883 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.22 }} -0.05%

score

0.60670

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability