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CVE detail

CVE-2021-1879

This issue was addressed by improved management of object lifetimes. This issue is fixed in iOS 12.5.2, iOS 14.4.2 and iPadOS 14.4.2, watchOS 7.3.3. Processing maliciously crafted web content may lead to universal cross site scripting. Apple is aware of a report that this issue may have been actively exploited..

CVSS 6.1 · MediumBuzz score 62.9KEV listed

Buzz score

Why this CVE is surfacing

Buzz score total 62.9

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 24.9 · diversity 13.0 · KEV 25.0 · OTX 0.0 · PoC 0.0
Mention score
24.9
11 evidence mentions in the snapshot
Diversity score
13.0
4 sources across 2 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
11 source links · newest first
  • Russia-linked APT29 group was spotted reusing iOS and Chrome exploits previously developed by surveillance firms NSO Group and Intellexa. Google TAG (Threat Analysis Group) researchers observed the Russia-linked group APT29 (aka SVR group, BlueBravo, Cozy Bear, Nobelium, Midnight Blizzard, and The Dukes). using exploits previously used by surveillance software vendors NSO Group and Intellexa. The circumstance suggests that the nation-state actors […]

    newssecurityaffairs.comAug 30, 2024, 5:33 AM
  • Google TAG publishes evidence showing identical or striking similarities between exploits used by Russia’s APT29 and commercial spyware vendors.

    newswww.securityweek.comAug 29, 2024, 1:00 PM
  • 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
  • Google security experts revealed that Russia-linked APT group targeted LinkedIn users with Safari zero-day. Security researchers from Google Threat Analysis Group (TAG) and Google Project Zero revealed that four zero-day vulnerabilities have been exploited in the wild earlier this year. The four security flaws were discovered earlier this year and affect Google Chrome, Internet Explorer, and WebKit browser […]

    newssecurityaffairs.comJul 14, 2021, 9:25 PM
  • An alert released on Friday by the FBI and the DHS’s Cybersecurity and Infrastructure Security Agency (CISA) revealed that the number of organizations targeted in a recent attack abusing a legitimate email marketing service was higher than initially reported.

    newswww.securityweek.comMay 31, 2021, 11:07 AM
  • Microsoft experts uncovered a wide-scale malicious email campaign operated by NOBELIUM, the threat actor behind SolarWinds hack. Microsoft Threat Intelligence Center (MSTIC) has uncovered a wide-scale malicious email campaign conducted by NOBELIUM APT. The NOBELIUM APT is the threat actor that conducted supply chain attack against SolarWinds which involved multiple families of implants, including the SUNBURST […]

    newssecurityaffairs.comMay 28, 2021, 10:56 AM
  • SolarWinds attackers launch new campaignMalwarebytes Labs

    Nobelium is a synthetic chemical element with the symbol No and atomic number 102. It is named in honor of Alfred…

    newswww.malwarebytes.comMay 27, 2021, 5:00 PM
  • 29th March – Threat Intelligence ReportCheck Point Research

    For the latest discoveries in cyber research for the week of 29th March, please download our Threat Intelligence Bulletin. Top Attacks and Breaches The official PHP Git server has been compromised in a potential attempt to plant a backdoor in the PHP source code, used by 80% of the websites on the internet. The threat […]

    vendorresearch.checkpoint.comMar 29, 2021, 4:36 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

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars
No public PoC repositories have been matched yet.

Related records

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