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CVE detail

CVE-2021-1871

A logic issue was addressed with improved restrictions. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..

CVSS 9.8 · CriticalBuzz score 56.5KEV listed

Buzz score

Why this CVE is surfacing

Buzz score total 56.5

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 22.0 · diversity 9.5 · KEV 25.0 · OTX 0.0 · PoC 0.0
Mention score
22.0
8 evidence mentions in the snapshot
Diversity score
9.5
4 sources across 1 categories
KEV score
25.0
Known exploited vulnerability present
OTX score
0.0
0 OTX pulses
PoC score
0.0
0 repos · best confidence N/A
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
0
within the 30d window
Peak daily
0
highest bucket

Evidence

Source links by recency

Newest mentions first
8 source links · newest first
  • Apple released emergency updates for both iOS and iPadOS to address a zero-day flaw that is actively exploited in the wild. Apple has released iOS 15.0.2 and iPadOS 15.0.2 to address a zero-day flaw, tracked as CVE-2021-30883, that is actively exploited in the wild. The flaw is a critical memory corruption issue that resides in […]

    newssecurityaffairs.comOct 11, 2021, 11:43 PM
  • Apple has released a security update for iOS and iPad that addresses a critical vulnerability reportedly being exploited in the wild.The…

    newswww.malwarebytes.comOct 11, 2021, 5:00 PM
  • Apple released a security update that addresses CVE-2021-30807 flaw in macOS and iOS that may have been actively exploited to deliver malware Apple addressed a security flaw, tracked as CVE-2021-30807, in macOS and iOS that may have been actively exploited to plant malware on vulnerable devices. The vulnerability resides in the IOMobileFramebuffer, which is a […]

    newssecurityaffairs.comJul 26, 2021, 10:16 PM
  • Apple has released new out-of-band updates for iOS, iPadOS, macOS and watchOS to address another zero‑day flaw, tracked CVE-2021-1879, actively exploited. Apple has released a new set of out-of-band patches for iOS, iPadOS, macOS and watchOS to address a critical zero-day vulnerability, tracked as CVE-2021-1879, that is being actively exploited in the wild. The vulnerability resides […]

    newssecurityaffairs.comMar 27, 2021, 10:25 AM
  • Apple this week released security updates to address multiple vulnerabilities in macOS and Safari, including a flaw that can be exploited for the recently disclosed NAT Slipstreaming 2.0 attack .

    newswww.securityweek.comFeb 2, 2021, 11:26 AM
  • Apple has addressed three zero-day vulnerabilities in its iOS operating system that have been exploited in the wild. Apple has addressed three zero-day vulnerabilities in iOS that have been exploited in the wild with the release of security updates (iOS 14.4). The first zero-day issue, tracked as CVE-2021-1782, is a race condition that resides in the […]

    newssecurityaffairs.comJan 27, 2021, 2:01 PM
  • Apple fixes three actively exploited iOS zero-daysHelp Net Security

    Apple has release a new batch of security updates and has fixed three iOS zero-days that “may have been actively exploited” by attackers. The three zero-days Two of the zero-day vulnerabilities (CVE-2021-1870 and CVE-2021-1871) are logic issues affecting the WebKit browser engine, which may allow a remote attacker to achieve code execution on devices running a vulnerable version of iOS or iPadOS (i.e., those prior to version 14.4). The third zero-day (CVE-2021-1782) affects the operating … More →

    newswww.helpnetsecurity.comJan 27, 2021, 11:30 AM
  • Apple on Tuesday dropped emergency security patches for its flagship iOS and iPad OS platforms alongside a warning that hackers may already be exploiting three different security vulnerabilities. The patches — contained in iOS 14.4 and iPadOS 14.4 — are currently being pushed to mobile users via the automatic updating mechanism. Apple did not provide technical details of the vulnerabilities or the in-the-wild attacks, except to identify the flaws in the Kernel and in WebKit, the open-source web browser engine used in Safari, Mail, AppStore and a range of MacOS and iOS apps. Here are the bare-bones details from Apple: CVE-2021-1782 (Kernel) — Impact: A malicious application may be able to elevate privileges. Apple is aware of a report that this issue may have been actively exploited . Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation). Anonymously reported. CVE-2021-1871 and CVE-2021-1870 (WebKit) — Impact: A remote attacker…

    newswww.securityweek.comJan 26, 2021, 7:52 PM

Exploit code

Public exploit repository references

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0 repository references · best confidence N/A · max 0 stars
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Related records

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