CVE-2023-34056 | VMware vCenter Server Partial Information Disclosure Vulnerability

vCenter Server contains a partial information disclosure vulnerability. A malicious actor with non-administrative privileges to vCenter Server may leverage this issue to access unauthorized data.

Published: 2023-10-25 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-34056 is rated Low Risk (34.1/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.67%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-34056

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.20% 0.67% +0.47%
2 2026-03-04 0.13% 0.20% +0.07%
3 2026-03-02 — 0.13% —

Full EPSS history (25 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-34056

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 1.4 [email protected]
4.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 1.4 [email protected]

Weakness enumeration for CVE-2023-34056

Affected software / configurations for CVE-2023-34056

Vendor Product Version Raw CPE
vmware vcenter_server >= 4.0, <= 5.5 cpe:2.3:a:vmware:vcenter_server:*:*:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:-:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:a:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:b:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:c:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:d:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:update1:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:update1a:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:update1c:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:update1d:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:update2:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:update2a:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:update2b:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:update2c:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:update2d:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:update3:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:update3a:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:update3c:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:update3d:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:update3e:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:update3f:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:update3g:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:update3h:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:update3i:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:update3j:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:update3k:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:update3l:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:update3m:*:*:*:*:*:*
vmware vcenter_server 7.0 cpe:2.3:a:vmware:vcenter_server:7.0:update3n:*:*:*:*:*:*
vmware vcenter_server 8.0 cpe:2.3:a:vmware:vcenter_server:8.0:-:*:*:*:*:*:*
vmware vcenter_server 8.0 cpe:2.3:a:vmware:vcenter_server:8.0:a:*:*:*:*:*:*
vmware vcenter_server 8.0 cpe:2.3:a:vmware:vcenter_server:8.0:b:*:*:*:*:*:*
vmware vcenter_server 8.0 cpe:2.3:a:vmware:vcenter_server:8.0:c:*:*:*:*:*:*
vmware vcenter_server 8.0 cpe:2.3:a:vmware:vcenter_server:8.0:update1:*:*:*:*:*:*
vmware vcenter_server 8.0 cpe:2.3:a:vmware:vcenter_server:8.0:update1a:*:*:*:*:*:*
vmware vcenter_server 8.0 cpe:2.3:a:vmware:vcenter_server:8.0:update1b:*:*:*:*:*:*
vmware vcenter_server 8.0 cpe:2.3:a:vmware:vcenter_server:8.0:update1c:*:*:*:*:*:*
vmware vcenter_server 8.0 cpe:2.3:a:vmware:vcenter_server:8.0:update1d:*:*:*:*:*:*

References for CVE-2023-34056

cvelogic Threat Intelligence