VulnerabilityModified
CVE-2021-21995
OpenSLP as used in ESXi has a denial-of-service vulnerability due a heap out-of-bounds read issue.
HIGH 7.5EPSS 0.96%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.96%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.96% probability · 60th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- vmware/cloud foundation · vmware/esxi
- Source
- security@vmware.com
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.