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CVE-2022-27518

Unauthenticated remote arbitrary code execution

  • Critical 9.8
  • Exploited: added to CISA KEV 13 Dec 2022

Description

Unauthenticated remote arbitrary code execution

Key facts

Published
13 Dec 2022
Last changed
21 Oct 2025
Assigned by
Citrix
KEV added
13 Dec 2022
KEV fix due
3 Jan 2023
EPSS
6.858% likely to be exploited in the next 30 days, higher than 94.144% of CVEs (scores for 15 Nov 2026)
SSVC (CISA)
Exploitation: active; Automatable: yes; Technical impact: total

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

  • 9.8CVSS 3.1, Criticalfrom the CNA (Citrix)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What to do

  • Apply updates per vendor instructions.CISA KEV required action

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

CAPEC-253 Remote Code Inclusion (CNA impact statement)

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

VendorProductVersions
CitrixCitrix Gateway, Citrix ADC
  • Default status: unaffected
  • 12.1 (affected)
  • 13.0 (affected)
  • 12.1 FIPs, NDcPP (affected)

Timeline

  1. 13 Dec 2022 Published
  2. 13 Dec 2022 CVE-2022-27518 added to CISA KEV
  3. 13 Dec 2022 Added to the CISA KEV catalogue

Weakness

References