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CVE detail

CVE-2021-28476

Windows Hyper-V Remote Code Execution Vulnerability

CVSS 9.9 · CriticalBuzz score 32.5

Buzz score

Why this CVE is surfacing

Buzz score total 32.5

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 19.5 · diversity 13.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
19.5
6 evidence mentions in the snapshot
Diversity score
13.0
4 sources across 2 categories
KEV score
0.0
No KEV entry observed
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
6 source links · newest first
  • 2nd August – Threat Intelligence ReportCheck Point Research

    For the latest discoveries in cyber research for the week of 2nd August, please download our Threat Intelligence Bulletin. Top Attacks and Breaches The company that manages COVID-19 vaccination appointments in the Lazio Region in Italy has been hit by ransomware. The attack took down its IT systems, making the booking site unreachable and suspending […]

    vendorresearch.checkpoint.comAug 2, 2021, 12:37 PM
  • Researchers Publish Details on Recent Critical Hyper-V VulnerabilitySecurityWeek

    Security researchers at Guardicore Labs are sharing details of a critical vulnerability in Hyper-V that Microsoft patched in May 2021.

    newswww.securityweek.comJul 29, 2021, 5:02 PM
  • Critical flaw in Microsoft Hyper-V could allow RCE and DoSSecurity Affairs

    Experts disclose details about a critical flaw in Microsoft Hyper-V, tracked as CVE-2021-28476, that can allow executing arbitrary code on it. Researchers Peleg Hadar of SafeBreach and Ophir Harpaz of Guardicore disclose details about a critical flaw in Microsoft Hyper-V, tracked as CVE-2021-28476, that can allow triggering a DoS condition ot executing arbitrary code on it. The flaw resides in […]

    newssecurityaffairs.comJul 29, 2021, 7:36 AM
  • Microsoft Patch Tuesday for May 2021 fix 4 critical flawsSecurity Affairs

    Microsoft Patch Tuesday for May 2021 security updates addressed 55 vulnerabilities, four are rated as Critical. Microsoft Patch Tuesday for May 2021 security updates address 55 vulnerabilities in Microsoft Windows, .NET Core and Visual Studio, Internet Explorer (IE), Microsoft Office, SharePoint Server, Open-Source Software, Hyper-V, Skype for Business and Microsoft Lync, and Exchange Server. Four […]

    newssecurityaffairs.comMay 12, 2021, 9:39 PM
  • May 2021 Patch Tuesday: Adobe fixes exploited Reader 0-day, Microsoft patches 55 holesHelp Net Security

    On this May 2021 Patch Tuesday: Adobe has fixed a Reader flaw exploited in attacks in the wild, as well as delivered security updates for eleven other products, including Magento, Adobe InDesign, Adobe After Effects, Adobe Creative Cloud Desktop Application, and others Microsoft has plugged 55 security holes, none actively exploited SAP has released 14 new and updated security patches Adobe updates Adobe has released security updates for 12 of its products, fixing a total of … More →

    newswww.helpnetsecurity.comMay 12, 2021, 8:40 AM
  • Microsoft Patch Tuesday: 55 Vulnerabilities, 4 Critical, 3 Publicly KnownSecurityWeek

    Microsoft’s monthly security patch release for May 2021 includes cover for 55 documented vulnerabilities, some serious enough to expose Windows users to remote code execution attacks.

    newswww.securityweek.comMay 11, 2021, 6:45 PM

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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