Vulnerability · Published Jul 13, 2021 · Assigned by vmware
CVE-2021-21995
High 7.5
In plain English
A high-severity security flaw in VMware ESXi and VMware Cloud Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 62% of all known vulnerabilities).
Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.0%top 38.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | VMware ESXi and VMware Cloud Foundation | VMware ESXi(7.0 before ESXi70U2-17630552, 6.7 before ESXi670-202103101-SG, 6.5 before ESXi650-202107401-SG) and VMware Cloud Foundation (4.x, 3.x before 3.10.2) |
References
- https://www.vmware.com/security/advisories/VMSA-2021-0014.html x_refsource_MISC