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.
EPSS · FIRST.org
45.1%probability of exploitation in the next 30 days
Higher than 98% of scored CVEs
EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-19, recomputed daily by FIRST.org.
CVSS v3.1 Score
Information
- Published
- 24 févr. 2021
- Updated
- 17 juin 2026
- Status
- Modified
- Source
- security@vmware.com
Affected products
Weaknesses (CWE)
References (6)
- http://packetstormsecurity.com/files/162957/VMware-ESXi-OpenSLP-Heap-Overflow.htmlExploitThird Party AdvisoryVDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-21-250/Third Party AdvisoryVDB Entry
- http://packetstormsecurity.com/files/162957/VMware-ESXi-OpenSLP-Heap-Overflow.htmlExploitThird Party AdvisoryVDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-21-250/Third Party AdvisoryVDB Entry
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