CVE-2018-13382

CRITICALNVD 9.19.1
EchelonGraph scoreHIGH confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score elevated to 9.1 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-01-10), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.1 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: CISA Known Exploited Vulnerabilities catalog, EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 3 sources updated this weekExploited in the wild

Also known asEUVD-2018-5326 (ENISA EUVD) · GHSA-chg2-j3mj-m3rj (GitHub Security Advisories)Source: ENISA EUVD

9.1EG
EchelonGraph verdictMitigate nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV) — the reason this is sooner than the SSVC decision on this page at low mission impact
CISA-KEV: ExploitedEPSS PROB: 82%CVSS: 9.1Exploit: Public PoCExposed services: Not assessed

No fix has been recorded since the CVE record was published in 2019 — use a compensating control (WAF / firewall / segmentation) and check the vendor's advisory.

An Improper Authorization vulnerability in Fortinet FortiOS 6.0.0 to 6.0.4, 5.6.0 to 5.6.8 and 5.4.1 to 5.4.10 and FortiProxy 2.0.0, 1.2.0 to 1.2.8, 1.1.0 to 1.1.6, 1.0.0 to 1.0.7 under SSL VPN web portal allows an unauthenticated attacker to modify the password of an SSL VPN web portal user via specially crafted HTTP requests

CVSS v3
9.1
EG Score
9.1CRITICALhigh confidence
EG Risk
96
EG Risk 96/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity91% × 45%
Impact severity (EG Severity): CVSS 9.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation100% × 40%
Fixed at 100% for a CISA KEV listing: EchelonGraph's rule.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Attend at low mission impact; Act at medium or high.
Exploitation active (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix has been recorded since the CVE record was published in 2019. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation sooner than your normal schedule at low mission impact and as soon as possible at medium or high.
EPSS PROB
82%
EPSS %ILE
99th
KEV
⚠ Exploited

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.1): severity, escalated by confirmed exploitation. This CVE's 9.1 is its impact severity (EG Severity), not escalated.

EG Severity
9.1 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
82% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
CISA KEV and EG-KEV Tier 1 (exploited in the wild)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Act at medium mission impactAttend at low mission impact; Act at medium or high.CISA BOD 26-04: 3 days & forensic triage if the affected system is publicly exposed; 3 days & forensic triage if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: this CVE is in CISA's KEV catalog, and CISA's required action for it, quoted below, applies whether or not a fix is released.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Attend at low mission impact; Act at medium or high.

No fix has been recorded since the CVE record was published in 2019. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation sooner than your normal schedule at low mission impact and as soon as possible at medium or high.

Exploitation active (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days & forensic triage if the affected system is publicly exposed; 3 days & forensic triage if it is not.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: this CVE is in CISA's KEV catalog, and CISA's required action for it, quoted below, applies whether or not a fix is released.

The score's inputs: In CISA KEV yes (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

CISA required action“Apply updates per vendor instructions.”

Quoted verbatim from CISA's Known Exploited Vulnerabilities catalog. CISA directs it at US federal civilian executive branch agencies under Binding Operational Directive (BOD) 26-04, which replaced BOD 22-01 on 10 June 2026; it is not EchelonGraph's advice. CISA's notes: https://nvd.nist.gov/vuln/detail/CVE-2018-13382

Published

June 4, 2019

Last Modified

October 24, 2025

Advisory Details (2)

Auto-updated Nov 2, 2026
⚠️ Actively exploited (CISA KEV, CISA Vulnrichment). No fix on record since 2019. Sources: cisa.
CISA🔴 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-2018-13382
Web page

PSIRT | FortiGuard Labs

https://www.fortiguard.com/psirt/FG-IR-20-231

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 15× in last 7d / 112× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 1,010 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 910 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 15:24 UTCEG score recompute
  2. 2026-11-01 15:24 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  3. 2026-10-31 16:12 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  4. 2026-10-30 16:57 UTCEG score recompute
  5. 2026-10-30 16:57 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  6. 2026-10-30 16:28 UTCEPSS rescoreEPSS 82% · 99th percentile
  7. 2026-10-29 17:46 UTCEG score recompute
  8. 2026-10-29 17:46 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  9. 2026-10-28 18:34 UTCEG score recompute
  10. 2026-10-28 18:34 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  11. 2026-10-28 16:27 UTCEPSS rescoreEPSS 82% · 99th percentile
  12. 2026-10-27 19:21 UTCEG score recompute
  13. 2026-10-27 19:21 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  14. 2026-10-26 20:10 UTCEG score recompute
  15. 2026-10-26 20:09 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  16. 2026-10-25 20:56 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  17. 2026-10-25 19:25 UTCEG score recompute
  18. 2026-10-25 16:27 UTCEPSS rescoreEPSS 82% · 99th percentile
  19. 2026-10-24 21:44 UTCEG score recompute
  20. 2026-10-24 21:44 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  21. 2026-10-24 16:27 UTCEPSS rescoreEPSS 82% · 99th percentile
  22. 2026-10-23 22:33 UTCEG score recompute
  23. 2026-10-23 22:33 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  24. 2026-10-22 23:20 UTCEG score recompute
  25. 2026-10-22 23:20 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
Show 75 more
  1. 2026-10-22 00:08 UTCEG score recompute
  2. 2026-10-22 00:07 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  3. 2026-10-21 16:27 UTCEPSS rescoreEPSS 82% · 99th percentile
  4. 2026-10-21 00:52 UTCEG score recompute
  5. 2026-10-21 00:52 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  6. 2026-10-20 01:39 UTCEG score recompute
  7. 2026-10-20 01:38 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  8. 2026-10-19 16:27 UTCEPSS rescoreEPSS 82% · 99th percentile
  9. 2026-10-19 02:26 UTCEG score recompute
  10. 2026-10-19 02:26 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  11. 2026-10-18 03:12 UTCEG score recompute
  12. 2026-10-18 03:12 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  13. 2026-10-17 03:59 UTCEG score recompute
  14. 2026-10-17 03:59 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  15. 2026-10-16 04:46 UTCEG score recompute
  16. 2026-10-16 04:46 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  17. 2026-10-15 16:27 UTCEPSS rescoreEPSS 82% · 99th percentile
  18. 2026-10-15 05:32 UTCEG score recompute
  19. 2026-10-15 05:31 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  20. 2026-10-14 16:27 UTCEPSS rescoreEPSS 82% · 99th percentile
  21. 2026-10-14 06:19 UTCEG score recompute
  22. 2026-10-14 06:19 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  23. 2026-10-13 16:27 UTCEPSS rescoreEPSS 82% · 99th percentile
  24. 2026-10-13 07:06 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  25. 2026-10-12 20:19 UTCEG score recompute
  26. 2026-10-12 16:28 UTCEPSS rescoreEPSS 82% · 99th percentile
  27. 2026-10-12 07:52 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  28. 2026-10-12 03:46 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  29. 2026-10-11 23:41 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  30. 2026-10-11 19:34 UTCEG score recompute
  31. 2026-10-11 19:34 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  32. 2026-10-11 15:29 UTCEG score recompute
  33. 2026-10-11 15:29 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  34. 2026-10-11 11:24 UTCEG score recompute
  35. 2026-10-11 11:24 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  36. 2026-10-11 07:18 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  37. 2026-10-11 03:13 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  38. 2026-10-10 23:05 UTCEG score recompute
  39. 2026-10-10 23:05 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  40. 2026-10-10 19:55 UTCEPSS rescoreEPSS 82% · 99th percentile
  41. 2026-10-10 18:59 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  42. 2026-10-10 14:54 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  43. 2026-10-10 10:49 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  44. 2026-10-10 06:45 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  45. 2026-10-10 02:40 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  46. 2026-10-09 22:36 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  47. 2026-10-09 18:30 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  48. 2026-10-09 14:23 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  49. 2026-10-09 10:15 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  50. 2026-10-09 06:10 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  51. 2026-10-09 02:05 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  52. 2026-10-08 22:00 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  53. 2026-10-08 17:55 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  54. 2026-10-08 13:50 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  55. 2026-10-08 09:40 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  56. 2026-10-08 05:35 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  57. 2026-10-08 01:30 UTCEG score recompute
  58. 2026-10-08 01:30 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  59. 2026-10-07 23:41 UTCEPSS rescoreEPSS 82% · 99th percentile
  60. 2026-10-07 21:24 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  61. 2026-10-07 17:18 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  62. 2026-10-07 13:12 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  63. 2026-10-07 09:07 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  64. 2026-10-07 05:02 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  65. 2026-10-07 00:57 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  66. 2026-10-06 20:51 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  67. 2026-10-06 16:45 UTCEG score recompute
  68. 2026-10-06 16:45 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  69. 2026-10-06 15:12 UTCEPSS rescoreEPSS 82% · 99th percentile
  70. 2026-10-06 12:40 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  71. 2026-10-06 08:35 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  72. 2026-10-06 04:26 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  73. 2026-10-06 00:21 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  74. 2026-10-05 20:16 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5
  75. 2026-10-05 16:11 UTCGHSA enrichmentGHSA-chg2-j3mj-m3rj · GitHub severity HIGH · GitHub CVSS 7.5

Publicly available exploits

(2 references)

Public exploit code is referenced for this CVE (1 Exploit-DB entry, 1 GitHub PoC). No fix has been recorded since the CVE record was published in 2019. If the vendor still supports the product, apply the fixed version it names; if it no longer does, isolate the affected system.

  • Exploit-DBEDB-49074
    Published Nov 19, 2020

    Fortinet FortiOS 6.0.4 - Unauthenticated SSL VPN User Password Modification

    Open source ↗
  • GitHub PoCmilo2012/CVE-2018-13382
    Published Aug 11, 2019

    CVE-2018-13382

    Open source ↗

Frequently asked(6)

What is CVE-2018-13382?
CVE-2018-13382 is a critical-severity vulnerability; its CVE record was published on June 4, 2019. An Improper Authorization vulnerability in Fortinet FortiOS 6.0.0 to 6.0.4, 5.6.0 to 5.6.8 and 5.4.1 to 5.4.10 and FortiProxy 2.0.0, 1.2.0 to 1.2.8, 1.1.0 to 1.1.6, 1.0.0 to 1.0.7 under SSL VPN web portal allows an unauthenticated attacker to modify the password of an SSL VPN web portal user via…
When was CVE-2018-13382 made public?
CVE-2018-13382 was made public on May 24, 2019: that is the date its CVE record's CNA, Fortinet, Inc., gives for when the vulnerability was made public. The CVE record itself was published on June 4, 2019. EchelonGraph's copy of the record carries a last-modified date of October 24, 2025; the record at its source may have been updated since.
Is CVE-2018-13382 actively exploited?
Yes. CISA added CVE-2018-13382 to the Known Exploited Vulnerabilities catalog on January 10, 2022, affecting Fortinet FortiOS and FortiProxy. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate attention. No fix has been recorded since the CVE record was published in 2019. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation.
What is the CVSS score of CVE-2018-13382?
CVE-2018-13382 has a CVSS v3 base score of 9.1 (NVD).
Which products are affected by CVE-2018-13382?
CVE-2018-13382 affects Fortinet FortiOS and FortiProxy.
How do I remediate CVE-2018-13382?
No fix for CVE-2018-13382 has been recorded since its CVE record was published in 2019. Restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and check the vendor's advisory for a fix.

Dependency Blast Radius

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