CVE-2023-20896 json
The VMware vCenter Server contains an out-of-bounds read vulnerability in the implementation of the DCERPC protocol.
published 2023-06-22 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-25067
- cvss
- 5.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 59%
- public exploits
- 0
- none known
Summary
The VMware vCenter Server contains an out-of-bounds read vulnerability in the implementation of the DCERPC protocol. A malicious actor with network access to vCenter Server may trigger an out-of-bounds read by sending a specially crafted packet leading to denial-of-service of certain services (vmcad, vmdird, and vmafdd).
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
- partial
- Assessed
- 23 mo ago
Exploit prediction
0.90% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
- VMware VMware vCenter Server (vCenter Server)
- VMware VMware Cloud Foundation (vCenter Server)
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
- Technology feeds
References
Sources
- CVE List CVE-2023-20896
- NVD CVE-2023-20896
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