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CVE-2021-21974

CVE-2021-21974

CVSS 8.8 HIGHEPSS 45.1%CWE-787
Vexday Risk Score
33Attention
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 8.8EPSS 45.1%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
24 Feb 2021Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
n/a · VMware Cloud Foundationn/a · VMware ESXi

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References
http://packetstormsecurity.com/files/162957/VMware-ESXi-OpenSLP-Heap-Overflow.htmlhttps://www.vmware.com/security/advisories/VMSA-2021-0002.htmlhttps://www.zerodayinitiative.com/advisories/ZDI-21-250/