CVE-2023-34048 KEV
9.8
CRITICAL · CVSS 3.1 · EPSS 99.4% (pctl 100)
Patch first
On CISA KEV — known exploited in the wild, due 2024-02-12.
Description
vCenter Server contains an out-of-bounds write vulnerability in the implementation of the DCERPC protocol. A malicious actor with network access to vCenter Server may trigger an out-of-bounds write potentially leading to remote code execution.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 99.43% — more likely to be exploited than 100% of all CVEs |
| Weakness | CWE-787 |
| On CISA KEV | yes — remediate by 2024-02-12 |
| Public exploit | none known |
| Published | 2023-10-25 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | VMware vCenter Server Out-of-Bounds Write Vulnerability |
|---|---|
| Added | 2024-01-22 |
| Due | 2024-02-12 |
| Vendor / product | VMware / vCenter Server |
| Ransomware use | none reported |
Affected (1)
| Vendor | Product |
|---|---|
| vmware | vcenter server |
References
- https://www.vmware.com/security/advisories/VMSA-2023-0023.html
- https://www.vicarius.io/vsociety/posts/understanding-cve-2023-34048-a-zero-day-out-of-bound-write-in-vcenter-server
- https://www.vmware.com/security/advisories/VMSA-2023-0023.html
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-34048
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