CVE-2024-11667

CRITICALNVD 7.59.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2024-12-03), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.5 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.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 3%CVSS: 7.5Exploit: cisa kev · ssvc active · kev ransomwareExposed: 0

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

A directory traversal vulnerability in the web management interface of Zyxel ATP series firmware versions V5.00 through V5.38, USG FLEX series firmware versions V5.00 through V5.38, USG FLEX 50(W) series firmware versions V5.10 through V5.38, and USG20(W)-VPN series firmware versions V5.10 through V5.38 could allow an attacker to download or upload files via a crafted URL.

CVSS v3
7.5
EG Score
9.0(high)
EG Risk
96(Attend)
EG Risk 96/100SSVC: 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%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
3%
EPSS %ILE
86%
KEV
⚠ Exploited

Published

November 27, 2024

Last Modified

October 27, 2025

Advisory Details (2)

Auto-updated Jun 4, 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-2024-11667
generic

Zyxel security advisory: protecting against recent firewall threats | Zyxel Networks

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-protecting-against-recent-firewall-threats-11-27-2024

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 53× in last 7d / 241× 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 519 total refreshes for this CVE.

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

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Frequently asked(6)

What is CVE-2024-11667?
CVE-2024-11667 is a critical vulnerability published on November 27, 2024. A directory traversal vulnerability in the web management interface of Zyxel ATP series firmware versions V5.00 through V5.38, USG FLEX series firmware versions V5.00 through V5.38, USG FLEX 50(W) series firmware versions V5.10 through V5.38, and USG20(W)-VPN series firmware versions V5.10 through…
When was CVE-2024-11667 disclosed?
CVE-2024-11667 was first published in the National Vulnerability Database on November 27, 2024, with the most recent update on October 27, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-11667 actively exploited?
Yes. CISA added CVE-2024-11667 to the Known Exploited Vulnerabilities catalog on December 3, 2024, affecting Zyxel Multiple Firewalls. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2024-11667?
CVE-2024-11667 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2024-11667?
CVE-2024-11667 affects Zyxel Multiple Firewalls. 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-2024-11667?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-11667, 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

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