CVE-2023-6548

CRITICALNVD 5.59.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2024-01-17), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 5.5 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • 3,432 internet-exposed hosts are running an affected version right now
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 3%CVSS: 5.5Exploit: cisa kev · ssvc activeExposed: 3,432

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

Live · internet exposure

3,432 internet-exposed hosts are running an affected version of CVE-2023-6548 right now.

across 29 countries (Germany, Australia, United Kingdom, United States, Bulgaria)top: netscaler_gateway
See the live KEV-Exposure radar →Found passively from public internet-scan data — aggregate, host-redacted.

EchelonGraph is the only CVE feed that fuses live vulnerability intelligence with its own live internet-exposure radar — so you see not just that a CVE is exploited, but how much of the internet is exposed to it right now.

CVSS v3
5.5
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
3%
EPSS %ILE
88%
KEV
⚠ Exploited

Published

January 17, 2024

Last Modified

October 24, 2025

Advisory Details (2)

Auto-updated Jun 13, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-6548
generic

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https://support.citrix.com/article/CTX584986/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20236548-and-cve20236549

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 58× in last 7d / 245× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 885 total refreshes for this CVE.

  1. 2026-09-19 01:30 UTCGHSA enrichment
  2. 2026-09-18 21:19 UTCEG score recompute
  3. 2026-09-18 21:19 UTCGHSA enrichment
  4. 2026-09-18 19:26 UTCEPSS rescore
  5. 2026-09-18 19:20 UTCCISA KEV update
  6. 2026-09-18 17:09 UTCGHSA enrichment
  7. 2026-09-18 14:15 UTCCISA KEV update
  8. 2026-09-18 12:58 UTCGHSA enrichment
  9. 2026-09-18 08:47 UTCGHSA enrichment
  10. 2026-09-18 04:36 UTCGHSA enrichment
  11. 2026-09-18 00:25 UTCGHSA enrichment
  12. 2026-09-17 20:14 UTCEG score recompute
  13. 2026-09-17 20:14 UTCGHSA enrichment
  14. 2026-09-17 16:03 UTCGHSA enrichment
  15. 2026-09-17 11:52 UTCGHSA enrichment
  16. 2026-09-17 07:40 UTCGHSA enrichment
  17. 2026-09-17 03:30 UTCGHSA enrichment
  18. 2026-09-16 23:19 UTCGHSA enrichment
  19. 2026-09-16 19:08 UTCGHSA enrichment
  20. 2026-09-16 14:57 UTCEG score recompute
  21. 2026-09-16 14:57 UTCGHSA enrichment
  22. 2026-09-16 14:10 UTCCISA KEV update
  23. 2026-09-16 14:06 UTCEPSS rescore
  24. 2026-09-16 10:46 UTCGHSA enrichment
  25. 2026-09-16 06:35 UTCEG score recompute
Show 75 more
  1. 2026-09-16 06:35 UTCGHSA enrichment
  2. 2026-09-16 05:11 UTCEPSS rescore
  3. 2026-09-16 05:11 UTCEPSS rescore
  4. 2026-09-16 02:24 UTCGHSA enrichment
  5. 2026-09-15 22:13 UTCGHSA enrichment
  6. 2026-09-15 18:01 UTCGHSA enrichment
  7. 2026-09-15 13:50 UTCGHSA enrichment
  8. 2026-09-15 09:38 UTCGHSA enrichment
  9. 2026-09-15 05:27 UTCEG score recompute
  10. 2026-09-15 05:27 UTCGHSA enrichment
  11. 2026-09-15 03:08 UTCEPSS rescore
  12. 2026-09-15 01:14 UTCGHSA enrichment
  13. 2026-09-14 21:03 UTCGHSA enrichment
  14. 2026-09-14 19:24 UTCCISA KEV update
  15. 2026-09-14 16:52 UTCGHSA enrichment
  16. 2026-09-14 12:41 UTCGHSA enrichment
  17. 2026-09-14 08:30 UTCGHSA enrichment
  18. 2026-09-14 04:20 UTCGHSA enrichment
  19. 2026-09-14 00:09 UTCGHSA enrichment
  20. 2026-09-13 19:58 UTCEG score recompute
  21. 2026-09-13 19:58 UTCGHSA enrichment
  22. 2026-09-13 16:45 UTCEPSS rescore
  23. 2026-09-13 15:47 UTCGHSA enrichment
  24. 2026-09-13 11:35 UTCGHSA enrichment
  25. 2026-09-13 07:23 UTCGHSA enrichment
  26. 2026-09-13 03:13 UTCGHSA enrichment
  27. 2026-09-12 23:02 UTCGHSA enrichment
  28. 2026-09-12 18:51 UTCEG score recompute
  29. 2026-09-12 18:51 UTCGHSA enrichment
  30. 2026-09-12 14:58 UTCEPSS rescore
  31. 2026-09-12 14:40 UTCGHSA enrichment
  32. 2026-09-12 10:29 UTCGHSA enrichment
  33. 2026-09-12 06:17 UTCGHSA enrichment
  34. 2026-09-12 02:07 UTCGHSA enrichment
  35. 2026-09-11 21:56 UTCGHSA enrichment
  36. 2026-09-11 18:49 UTCCISA KEV update
  37. 2026-09-11 17:45 UTCEG score recompute
  38. 2026-09-11 17:45 UTCGHSA enrichment
  39. 2026-09-11 14:51 UTCEPSS rescore
  40. 2026-09-11 13:34 UTCEG score recompute
  41. 2026-09-11 13:34 UTCGHSA enrichment
  42. 2026-09-11 09:34 UTCEPSS rescore
  43. 2026-09-11 09:23 UTCGHSA enrichment
  44. 2026-09-11 05:12 UTCGHSA enrichment
  45. 2026-09-11 01:01 UTCGHSA enrichment
  46. 2026-09-10 20:50 UTCGHSA enrichment
  47. 2026-09-10 19:28 UTCCISA KEV update
  48. 2026-09-10 16:39 UTCGHSA enrichment
  49. 2026-09-10 12:28 UTCEG score recompute
  50. 2026-09-10 12:28 UTCGHSA enrichment
  51. 2026-09-10 08:17 UTCGHSA enrichment
  52. 2026-09-10 04:06 UTCGHSA enrichment
  53. 2026-09-09 23:55 UTCGHSA enrichment
  54. 2026-09-09 19:44 UTCGHSA enrichment
  55. 2026-09-09 19:08 UTCCISA KEV update
  56. 2026-09-09 15:33 UTCGHSA enrichment
  57. 2026-09-09 11:22 UTCGHSA enrichment
  58. 2026-09-09 07:11 UTCGHSA enrichment
  59. 2026-09-09 03:00 UTCGHSA enrichment
  60. 2026-09-08 22:49 UTCEG score recompute
  61. 2026-09-08 22:49 UTCGHSA enrichment
  62. 2026-09-08 21:58 UTCEPSS rescore
  63. 2026-09-08 18:54 UTCCISA KEV update
  64. 2026-09-08 18:38 UTCGHSA enrichment
  65. 2026-09-08 14:27 UTCGHSA enrichment
  66. 2026-09-08 10:15 UTCGHSA enrichment
  67. 2026-09-08 06:04 UTCGHSA enrichment
  68. 2026-09-08 01:52 UTCGHSA enrichment
  69. 2026-09-07 21:41 UTCGHSA enrichment
  70. 2026-09-07 17:30 UTCEG score recompute
  71. 2026-09-07 17:30 UTCGHSA enrichment
  72. 2026-09-07 15:59 UTCEPSS rescore
  73. 2026-09-07 13:19 UTCGHSA enrichment
  74. 2026-09-07 09:06 UTCGHSA enrichment
  75. 2026-09-07 04:55 UTCGHSA enrichment

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Frequently asked(6)

What is CVE-2023-6548?
CVE-2023-6548 is a critical vulnerability published on January 17, 2024. 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.
When was CVE-2023-6548 disclosed?
CVE-2023-6548 was first published in the National Vulnerability Database on January 17, 2024, with the most recent update on October 24, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-6548 actively exploited?
Yes. CISA added CVE-2023-6548 to the Known Exploited Vulnerabilities catalog on January 17, 2024, affecting Citrix NetScaler ADC and NetScaler Gateway. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2023-6548?
CVE-2023-6548 has a CVSS v3 base score of 5.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2023-6548?
CVE-2023-6548 affects Citrix NetScaler ADC and NetScaler Gateway. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2023-6548?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-6548, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2023-6548

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