November 13, 2026 Follow Egret
CVE-2023-6548 · CVE record: PUBLISHED

Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerability

Cloud Software Group NetScaler ADC, Cloud Software Group 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.

Exploitation evidence

Known exploited · CISA KEV listed

Added 2024-01-17. Ransomware campaign use: Unknown.

CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

CISA due date: 2024-01-24. This is the catalog’s deadline, not an assessment of your organization’s exposure.

KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗

Reported products and versions

Cloud Software Group / NetScaler ADC

Default status: unaffected

  • affected: 14.1 to < 12.35 (patch)
  • affected: 13.1 to < 51.15 (patch)
  • affected: 13.0 to < 92.21 (patch)
  • affected: 13.1-FIPS to < 37.176 (patch)
  • affected: 12.1-FIPS to < 55.302 (patch)
  • affected: 12.1-NDcPP to < 55.302 (patch)

Cloud Software Group / NetScaler Gateway

Default status: unaffected

  • affected: 14.1 to < 12.35 (patch)
  • affected: 13.1 to < 51.15 (patch)
  • affected: 13.0 to < 92.21 (patch)

Fixes and workarounds

No explicit solution text in the downloaded CVE record. Consult the vendor advisory; unaffected version ranges are shown above as reported, not inferred as a patch recommendation.

Sources and related reporting

CVE Program record ↗ · Download tracked evidence as JSON

Observed change timeline

History begins when Egret first downloads each source. It is not the complete upstream CVE history.

12 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-12",
  "epss": 0.03191,
  "percentile": 0.8828
}
10 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-10",
  "epss": 0.03191,
  "percentile": 0.88204
}
09 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-09",
  "epss": 0.03191,
  "percentile": 0.88188
}
08 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-08",
  "epss": 0.03191,
  "percentile": 0.88182
}
07 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-07",
  "epss": 0.03191,
  "percentile": 0.88175
}
06 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-06",
  "epss": 0.03191,
  "percentile": 0.88157
}
06 Nov 2026, 06:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-05",
  "epss": 0.03191,
  "percentile": 0.88147
}
04 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-04",
  "epss": 0.03191,
  "percentile": 0.88137
}
04 Nov 2026, 18:20 Jerusalem · CVE Program record changed

Stored CNA snapshot at this observation.

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            "attackVector": "ADJACENT_NETWORK",
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03 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-03",
  "epss": 0.03191,
  "percentile": 0.88116
}
03 Nov 2026, 02:22 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-02",
  "epss": 0.03191,
  "percentile": 0.88101
}
03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed

Stored KEV snapshot at this observation.

{
  "cveID": "CVE-2023-6548",
  "cwes": [
    "CWE-94"
  ],
  "dateAdded": "2024-01-17",
  "dueDate": "2024-01-24",
  "forensicTriage": "No",
  "knownRansomwareCampaignUse": "Unknown",
  "notes": "https://support.citrix.com/article/CTX584986/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20236548-and-cve20236549;   https://nvd.nist.gov/vuln/detail/CVE-2023-6548",
  "product": "NetScaler ADC and NetScaler Gateway",
  "requiredAction": "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.",
  "shortDescription": "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.",
  "vendorProject": "Citrix",
  "vulnerabilityName": "Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerability"
}
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