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CISA KEV · Known exploitedCritical

CVE-2019-19781

Citrix Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance

An issue was discovered in Citrix Application Delivery Controller (ADC) and Gateway 10.5, 11.1, 12.0, 12.1, and 13.0. They allow Directory Traversal.

CVSS
9.8
EPSS
100.0%
100.0% percentile
CISA KEV
Listed
Published
2019.12.27
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability100.0%
Technical severityCVSS 9.8

Vulnerability overview

An issue was discovered in Citrix Application Delivery Controller (ADC) and Gateway 10.5, 11.1, 12.0, 12.1, and 13.0. They allow Directory Traversal.

Affected product and versions

Product
Citrix Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance
Affected versions
10.5, 11.1, 12.0, 12.1, 13.0
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA required action

Apply updates per vendor instructions.

Due date: 2022.05.03
  1. 1
    Identify

    Confirm that Citrix Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-22
KEV added
2021.11.03
Ransomware use
확인됨
CVE-2019-19781 — Citrix Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance | SECUFOCUS NOW