CVE-2023-20878

VMware Aria Operations contains a deserialization vulnerability. A malicious actor with administrative privileges can execute arbitrary commands and disrupt the system.

Published: 2023-05-12 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-20878 is rated Moderate Risk (44.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.00%). Review affected assets and schedule remediation.

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-2023-20878

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 5.55% 1.00% -4.55%
2 2026-06-03 2.25% 5.55% +3.30%
3 2026-05-28 — 2.25% —

Full EPSS history (18 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-20878

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.2 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H 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:H)
They need powerful rights—admin, root, or similar—before this pays off.
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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.2 5.9 [email protected]
7.2 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H 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:H)
They need powerful rights—admin, root, or similar—before this pays off.
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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.2 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2023-20878

Affected software / configurations for CVE-2023-20878

Vendor Product Version Raw CPE
vmware cloud_foundation >= 4.0, <= 4.5 cpe:2.3:a:vmware:cloud_foundation:*:*:*:*:*:*:*:*
vmware vrealize_operations 8.6.0 cpe:2.3:a:vmware:vrealize_operations:8.6.0:-:*:*:*:*:*:*
vmware vrealize_operations 8.6.0 cpe:2.3:a:vmware:vrealize_operations:8.6.0:hotfix1:*:*:*:*:*:*
vmware vrealize_operations 8.6.0 cpe:2.3:a:vmware:vrealize_operations:8.6.0:hotfix2:*:*:*:*:*:*
vmware vrealize_operations 8.6.0 cpe:2.3:a:vmware:vrealize_operations:8.6.0:hotfix4:*:*:*:*:*:*
vmware vrealize_operations 8.6.0 cpe:2.3:a:vmware:vrealize_operations:8.6.0:hotfix5:*:*:*:*:*:*
vmware vrealize_operations 8.6.0 cpe:2.3:a:vmware:vrealize_operations:8.6.0:hotfix6:*:*:*:*:*:*
vmware vrealize_operations 8.6.0 cpe:2.3:a:vmware:vrealize_operations:8.6.0:hotfix8:*:*:*:*:*:*
vmware vrealize_operations 8.6.0 cpe:2.3:a:vmware:vrealize_operations:8.6.0:hotfix9:*:*:*:*:*:*
vmware vrealize_operations 8.10.0 cpe:2.3:a:vmware:vrealize_operations:8.10.0:-:*:*:*:*:*:*
vmware vrealize_operations 8.10.0 cpe:2.3:a:vmware:vrealize_operations:8.10.0:hotfix1:*:*:*:*:*:*
vmware vrealize_operations 8.10.0 cpe:2.3:a:vmware:vrealize_operations:8.10.0:hotfix2:*:*:*:*:*:*

References for CVE-2023-20878

cvelogic Threat Intelligence