CVE-2021-21995: OpenSLP as used in ESXi has a denial-of-service vulnerability due a heap out-of-bounds read issue

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

None

Integrity

None

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)1.0% · higher than 61% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

ES

ESXi · VMware

6.5; 6.5; 6.5; 6.5; 6.5; 6.5; +34 more · source: NVD

CF

Cloud Foundation · Vmware

3.0 before 3.10.2 · source: NVD