CVE-2023-34048

CVE Enrichment

CVSS: 9.8 CRITICAL
EPSS: 99.23%
EPSS Percentile: 99.94%
CISA KEV: YES — Known Exploited Vulnerability

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.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: [email protected]
Published: 26-Oct-2023 01:17
Last Modified: 17-Jun-2026 13:02
EPSS Date: 2026-11-09
CWE: CWE-787

CVSS Vector


            CVSS:3.1                            AV:N /
                            AC:L /
                            PR:N /
                            UI:N /
                            S:U /
                            C:H /
                            I:H /
                            A:H

CISA KEV Details

Date Added: 2024-01-22
Remediation Due: 2024-02-12
Known Ransomware Campaign Use: Unknown
Required Action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Notes: https://www.vmware.com/security/advisories/VMSA-2023-0023.html; https://nvd.nist.gov/vuln/detail/CVE-2023-34048

CNA Products / Version Status

vmware · cloud_foundation Source: CNA · 134c704f-9b21-4f2e-91b3-4a467353bcc0
Default status: unknown

4.0 ≤ version < KB88287 — affected (custom)

CPEs: cpe:2.3:a:vmware:cloud_foundation:4.0:*:*:*:*:*:*:*
vmware · cloud_foundation Source: CNA · 134c704f-9b21-4f2e-91b3-4a467353bcc0
Default status: unknown

5.0 ≤ version < KB88287 — affected (custom)

CPEs: cpe:2.3:a:vmware:cloud_foundation:5.0:*:*:*:*:*:*:*
vmware · vcenter_server Source: CNA · 134c704f-9b21-4f2e-91b3-4a467353bcc0
Default status: unknown

7.0 ≤ version < 7.0U3o — affected (custom)

CPEs: cpe:2.3:a:vmware:vcenter_server:7.0:-:*:*:*:*:*:*
vmware · vcenter_server Source: CNA · 134c704f-9b21-4f2e-91b3-4a467353bcc0
Default status: unknown

8.0 ≤ version < 8.0U2 — affected (custom)

CPEs: cpe:2.3:a:vmware:vcenter_server:8.0:-:*:*:*:*:*:*
VMware · VMware Cloud Foundation (VMware vCenter Server) Source: CNA · [email protected]
Default status: unaffected

5.x — affected
4.x — affected

Platforms: Linux
VMware · VMware vCenter Server Source: CNA · [email protected]
Default status: unaffected

8.0 ≤ version < 8.0U2 — affected (8.0U2)
7.0 ≤ version < 7.0U3o — affected (7.0U3o)

Platforms: Linux

Affected Products / Versions

vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: * · from (inclusive) 4.0 · through (inclusive) 5.5
cpe:2.3:a:vmware:vcenter_server:*:*:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:-:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:a:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:b:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:c:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:d:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:update1:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:update1a:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:update1c:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:update1d:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:update2:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:update2a:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:update2b:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:update2c:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:update2d:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:update3:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:update3a:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:update3c:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:update3d:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:update3e:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:update3f:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:update3g:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:update3h:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:update3i:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:update3j:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:update3k:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:update3l:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:update3m:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 7.0
cpe:2.3:a:vmware:vcenter_server:7.0:update3n:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 8.0
cpe:2.3:a:vmware:vcenter_server:8.0:-:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 8.0
cpe:2.3:a:vmware:vcenter_server:8.0:a:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 8.0
cpe:2.3:a:vmware:vcenter_server:8.0:b:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 8.0
cpe:2.3:a:vmware:vcenter_server:8.0:c:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 8.0
cpe:2.3:a:vmware:vcenter_server:8.0:update1:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 8.0
cpe:2.3:a:vmware:vcenter_server:8.0:update1a:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 8.0
cpe:2.3:a:vmware:vcenter_server:8.0:update1b:*:*:*:*:*:*
vmware / vcenter_server Source: NVD CPE · affected
Version / affected range: 8.0
cpe:2.3:a:vmware:vcenter_server:8.0:update1c:*:*:*:*:*:*

References

Last enrichment sync: 09-Nov-2026 22:22
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

SHA256 hashes for CVE-2023-34048 Python Executable (vc.exe) Unit 42 Tracks CL-UNK-1068 Operations Targeting Asian Critical Sectors

CVE (1)

Malware (3)

Threat Actors (1)

MITRE ATT&CK (15)

Vendors (3)

Products (5)

Tools (12)

Industries (7)

Countries (1)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.