CVE-2022-27513Network attack vector

Remote desktop takeover via phishing

Published Nov 8, 2022 · Updated May 1, 2025

Insufficient verification of data authenticity in Citrix ADC/Gateway before the fixed builds allows remote attackers to take over remote desktop sessions via phishing. The flaw affects the RDP Proxy path when RDP proxy functionality is configured, allowing attacker-controlled phishing content to be accepted as authentic session data. A victim must interact with the phishing lure and the appliance must be customer-managed and configured as an RDP Proxy; the resulting impact is takeover of the targeted remote desktop session.

CVSS severity9.6
Critical
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Insufficient verification of data authenticity in Citrix ADC/Gateway before the fixed builds allows remote attackers to take over remote desktop sessions via phishing. The flaw affects the RDP Proxy path when RDP proxy functionality is configured, allowing attacker-controlled phishing content to be accepted as authentic session data. A victim must interact with the phishing lure and the appliance must be customer-managed and configured as an RDP Proxy; the resulting impact is takeover of the targeted remote desktop session.

The record

CVE
CVE-2022-27513
Published
Nov 8, 2022
Updated
May 1, 2025
Vendor
Citrix
Product
Citrix ADC/Gateway
Classifications
CWE-345, T1566.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 8, 2022CVE publishedPublication date reported by the CVE source.
  2. May 1, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Citrix · Citrix ADC/Gatewayversion=0

Published CVSS scores

10.0NVDAV:N/AC:L/Au:N/C:C/I:C/A:C
9.6NVDCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/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-345Insufficient Verification of Data Authenticity
T1566.002Spearphishing Link

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo