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CVE-2021-21974
Published: Feb 24, 2021
Modified: Jun 2, 2026
PUBLISHED
Description
OpenSLP as used in ESXi (7.0 before ESXi70U1c-17325551, 6.7 before ESXi670-202102401-SG, 6.5 before ESXi650-202102101-SG) has a heap-overflow vulnerability. A malicious actor residing within the same network segment as ESXi who has access to port 427 may be able to trigger the heap-overflow issue in OpenSLP service resulting in remote code execution.
| Vendor | Product | Versions |
|---|---|---|
n/a | VMware ESXi | affected 7.0 before ESXi70U1c-17325551affected 6.7 before ESXi670-202102401-SGaffected 6.5 before ESXi650-202102101-SG |
n/a | VMware Cloud Foundation | affected 4.x before 4.2 and 3.x |
References
https://www.vmware.com/security/advisories/VMSA-2021-0002.html
x_refsource_CONFIRM
https://www.zerodayinitiative.com/advisories/ZDI-21-250/
x_refsource_MISC
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