CVE-2023-20892 json
VMware vCenter Server heap-overflow vulnerability
published 2023-06-22 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-25063
- cvss
- 8.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.8%
- EPSS 1.8% chance of exploitation in 30 days, percentile 79%
- public exploits
- 0
- none known
Summary
The vCenter Server contains a heap overflow vulnerability due to the usage of uninitialized memory in the implementation of the DCERPC protocol. A malicious actor with network access to vCenter Server may exploit heap-overflow vulnerability to execute arbitrary code on the underlying operating system that hosts vCenter Server.
Patch / fix
- VMware VMware vCenter Server (vCenter Server) 7.0 u3m, 8.0 U1b
- VMware VMware Cloud Foundation (vCenter Server) 7.0 U3m, 8.0 U1b
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 23 mo ago
Exploit prediction
1.85% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- VMware VMware vCenter Server (vCenter Server)
- VMware VMware Cloud Foundation (vCenter Server)
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
- Technology feeds
References
Sources
- CVE List CVE-2023-20892
- NVD CVE-2023-20892
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