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CVE mentions, exploit signals, and PoC evidence in one fast public view.

CVE detail

CVE-2021-21995

OpenSLP as used in ESXi has a denial-of-service vulnerability due a heap out-of-bounds read issue. A malicious actor with network access to port 427 on ESXi may be able to trigger a heap out-of-bounds read in OpenSLP service resulting in a denial-of-service condition.

CVSS 7.5 · HighBuzz score 20.4

Buzz score

Why this CVE is surfacing

Buzz score total 20.4

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 13.9 · diversity 6.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
13.9
3 evidence mentions in the snapshot
Diversity score
6.5
2 sources across 1 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
3 source links · newest first
  • Surge in ESXiArgs Ransomware Attacks as Questions Linger Over Exploited VulnerabilitySecurityWeek

    Hundreds of new servers were compromised in the past days as part of ESXiArgs ransomware attacks, but it’s still unclear which vulnerability is being exploited.

    newswww.securityweek.comFeb 16, 2023, 9:36 AM
  • VMware Patches Vulnerabilities in ESXi, ThinAppSecurityWeek

    VMware on Tuesday announced the availability of patches for vulnerabilities impacting its ESXi hypervisor, Cloud Foundation hybrid cloud platform, and ThinApp application virtualization tool.

    newswww.securityweek.comJul 14, 2021, 1:00 PM
  • July 2021 Patch Tuesday: Microsoft fixes 4 actively exploited bugsHelp Net Security

    On this July 2021 Patch Tuesday: Microsoft has fixed 117 CVEs, 4 of which are actively exploited Adobe has delivered security updates for Acrobat and Reader, Bridge, Framemaker, Illustrator, and Dimension VMware has fixed two vulnerabilities in VMware ESXi and VMware Cloud Foundation SAP has released 12 security notes and updated 3 Intel has fixed an EOP bug affecting some of its Xeon and Core X-series processors Mozilla has upgraded Firefox and Firefox ESR, fixed … More →

    newswww.helpnetsecurity.comJul 13, 2021, 7:16 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

Similar CVEs

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