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01 Record

CVE-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

MediumKEVPUBLISHEDCNA: Citrix
CNA base score5.5 CVSS v3.xCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

02 Description

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

03 Exploitation and scoring

Exploitation
Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2024-01-17. Federal remediation due 2024-01-24.
SSVC decision
  • ExploitationactiveCISA reports credible evidence of active exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
3.19% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 87.9% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Analyzed. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2024-01-17 20:11Z2 YR AGO
Last updated
2025-10-21 23:05Z1 YR AGO
Reserved
2023-12-06
Assigning CNA
Citrix
Record state
PUBLISHED
Severity
Medium (CVSS 5.5)
CNA CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Weaknesses
  • CWE-94Improper Control of Generation of Code ('Code Injection')Base
Data version
5.1
Document digest
f95a79f2895777f98d1ef85b0473b409071a378bca1d772c6f95918642a4887a

05 Affected products

VendorProductVersionsPlatforms
Cloud Software GroupNetScaler ADC14.1 to < 12.35, 13.1 to < 51.15, 13.0 to < 92.21, 13.1-FIPS to < 37.176, 12.1-FIPS to < 55.302, 12.1-NDcPP to < 55.302—
Cloud Software GroupNetScaler Gateway14.1 to < 12.35, 13.1 to < 51.15, 13.0 to < 92.21—
citrixnetscaler_application_delivery_controller14.1 to < 14.1-12.35, 13.1 to < 13.1-51.15, 13.0 to < 13.0-92.21, 13.1 to < 13.1-37.176, 12.1 to < 12.1-55.302—
citrixnetscaler_gateway14.1 to < 14.1-12.35, 13.1 to < 13.1-51.15, 13.0 to < 13.0-92.21—

06 References