CVE-2023-20856Network attack vector

Victim-privileged actions via CSRF protection bypass

Published Feb 1, 2023 · Updated Mar 27, 2025

Cross-site request forgery bypass in VMware vRealize Operations 8.6.x allows remote attackers to execute actions as an authenticated victim. VMware has not disclosed which request handler or validation error permits forged requests to bypass CSRF protection. Exploitation requires an authenticated victim to interact with attacker-controlled content, and resulting actions inherit that victim's privileges.

CVSS severity6.5
Medium
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery bypass in VMware vRealize Operations 8.6.x allows remote attackers to execute actions as an authenticated victim. VMware has not disclosed which request handler or validation error permits forged requests to bypass CSRF protection. Exploitation requires an authenticated victim to interact with attacker-controlled content, and resulting actions inherit that victim's privileges.

The record

CVE
CVE-2023-20856
Published
Feb 1, 2023
Updated
Mar 27, 2025
Vendor
VMware
Product
VMware Aria Operations
Classifications
CWE-352
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 1, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 27, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=vRealize Operations Manager (vROps) 8.6.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

VMware · VMware Aria Operationsversion=vRealize Operations Manager (vROps) 8.6.4

Published CVSS scores

6.5VMwareCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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