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Vulnerabilities

Vulnerability · CVE-2023-6548

Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerability

Published Jan 16, 2024 · catalog updated Jun 16, 2026 · Citrix NetScaler ADC and NetScaler Gateway

Patch now

CVE-2023-6548 is in the CISA known-exploited catalog, due Jan 24, 2024. Confirm Citrix NetScaler ADC and NetScaler Gateway against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
High8.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
3.19%
Remediation
Remediation guidance
Affected products
cpe citrix/netscaler application delivery controller · cpe citrix/netscaler gateway · vendor Citrix NetScaler ADC and NetScaler Gateway

Improper Control of Generation of Code ('Code Injection') in NetScaler ADC and NetScaler Gateway allows an attacker with access to NSIP, CLIP or SNIP with management interface to perform Authenticated (low privileged) remote code execution on Management Interface.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe citrix/netscaler application delivery controllerversion unspecified
  • cpe citrix/netscaler gatewayversion unspecified
  • vendor Citrix NetScaler ADC and NetScaler Gatewayversion unspecified

How to fix CVE-2023-6548

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2023-6548 is in the CISA known-exploited catalog, due Jan 24, 2024. Confirm Citrix NetScaler ADC and NetScaler Gateway against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

What should an analyst verify?

CWE-94: Code Injection. EPSS 3.19%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 17, 2024 · Catalog

    Detected

    Improper Control of Generation of Code ('Code Injection') in NetScaler ADC and NetScaler Gateway allows an attacker with access to NSIP, CLIP or SNIP with management interface to perform Authenticated (low privileged) remote code execution on Management Interface.

  2. Jan 17, 2024 · CISA KEV

    Known exploited

    Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

  3. Jan 24, 2024 · CISA KEV

    Remediation due

    Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

  4. Jun 16, 2026 · Catalog

    Updated

    Improper Control of Generation of Code ('Code Injection') in NetScaler ADC and NetScaler Gateway allows an attacker with access to NSIP, CLIP or SNIP with management interface to perform Authenticated (low privileged) remote code execution on Management Interface.

Sources

  • CISA KEVConfirmed exploitationCVE-2023-6548

    Citrix NetScaler ADC and NetScaler Gateway contain a code injection vulnerability that allows for authenticated remote code execution on the management interface with access to NSIP, CLIP, or SNIP.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2023-6548

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2023-6548

    30-day exploitation probability 3.2%

    first.org
  • NIST NVDVulnerability recordCVE-2023-6548

    Improper Control of Generation of Code ('Code Injection') in NetScaler ADC and NetScaler Gateway allows an attacker with access to NSIP, CLIP or SNIP with management interface to perform Authenticated (low privileged) remote code execution on Management Interface.

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2023-6548

    Citrix NetScaler ADC and NetScaler Gateway contain a code injection vulnerability that allows for authenticated remote code execution on the management interface with access to NSIP, CLIP, or SNIP.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.