CVE-2018-13374

CRITICALNVD 4.39.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-09-08), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 4.3 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.
  • 53 internet-exposed hosts are running an affected version right now
  • Actively exploited in the wild (CISA-KEV)
  • Linked to ransomware campaigns
CISA-KEV: ExploitedEPSS PROB: 38%CVSS: 4.3Exploit: cisa kev · ssvc active · kev ransomware · Exploit-DB (verified) · epss top5pct · public exploitExposed: 53

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

A Improper Access Control in Fortinet FortiOS 6.0.2, 5.6.7 and before, FortiADC 6.1.0, 6.0.0 to 6.0.1, 5.4.0 to 5.4.4 allows attacker to obtain the LDAP server login credentials configured in FortiGate via pointing a LDAP server connectivity test request to a rogue LDAP server instead of the configured one.

Live · internet exposure

53 internet-exposed hosts are running an affected version of CVE-2018-13374 right now.

across 19 countries (United States, Thailand, United Kingdom, Hong Kong, Canada)top: fortios🔒 ransomware-linked
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
4.3
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
38%
EPSS %ILE
98%
KEV
⚠ Exploited

Published

January 22, 2019

Last Modified

October 24, 2025

Advisory Details (1)

Auto-updated Jun 14, 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-2018-13374

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 44× in last 7d / 224× 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 464 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-46171✓ verified
    First seen Jan 16, 2019

    Fortinet FortiGate FortiOS < 6.0.3 - LDAP Credential Disclosure

    Open source ↗

Frequently asked(6)

What is CVE-2018-13374?
CVE-2018-13374 is a critical vulnerability published on January 22, 2019. A Improper Access Control in Fortinet FortiOS 6.0.2, 5.6.7 and before, FortiADC 6.1.0, 6.0.0 to 6.0.1, 5.4.0 to 5.4.4 allows attacker to obtain the LDAP server login credentials configured in FortiGate via pointing a LDAP server connectivity test request to a rogue LDAP server instead of the…
When was CVE-2018-13374 disclosed?
CVE-2018-13374 was first published in the National Vulnerability Database on January 22, 2019, 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-2018-13374 actively exploited?
Yes. CISA added CVE-2018-13374 to the Known Exploited Vulnerabilities catalog on September 8, 2022, affecting Fortinet FortiOS and FortiADC. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2018-13374?
CVE-2018-13374 has a CVSS v3 base score of 4.3 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2018-13374?
CVE-2018-13374 affects Fortinet FortiOS and FortiADC. 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-2018-13374?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-13374, 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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