CVE-2022-27511Network attack vector

Unauthenticated system corruption enabling administrator password reset

Published Jun 16, 2022 · Updated Sep 17, 2024

Improper access control in Citrix NetScaler Console allows remote attackers with access to its IP address to corrupt the system. Citrix has not published the affected component or the operation that improperly accepts unauthenticated input, and independent analysis did not reproduce the reported password reset. Corruption can reset the administrator password on the next reboot, after which default credentials permit SSH access.

CVSS severity8.1
High
EPSS probability12.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Citrix NetScaler Console allows remote attackers with access to its IP address to corrupt the system. Citrix has not published the affected component or the operation that improperly accepts unauthenticated input, and independent analysis did not reproduce the reported password reset. Corruption can reset the administrator password on the next reboot, after which default credentials permit SSH access.

The record

CVE
CVE-2022-27511
Published
Jun 16, 2022
Updated
Sep 17, 2024
Vendor
Citrix
Product
NetScaler Console
Classifications
CWE-284, T1098
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 16, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record 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=unspecified <13.0-85.19
  2. Affected versionversion=unspecified <13.1-21.53

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Citrix · NetScaler Consoleversion=unspecified <13.0-85.19; version=unspecified <13.1-21.53

Published CVSS scores

8.1NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
7.8NIST NVDAV:N/AC:L/Au:N/C:N/I:C/A:N

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-284Improper Access Control
T1098Account Manipulation

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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