AUGUST 4, 2026
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Case File

CVE-2021-21995

HIGH · CVSS 7.5 EPSS 0.96%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-07-13 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. It affects ESXi. It may lead to a denial-of-service condition.

CVE
CVE-2021-21995
Severity
HIGH
CVSS
7.5
EPSS
0.96%
ESXi

Original NVD Description

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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)