CVE-2022-42475

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-12-13), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 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
9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • 8 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: 99%CVSS: 9.8Exploit: cisa kev · ssvc active · kev ransomware · epss top5pct · epss high · public exploitExposed: 8

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

A heap-based buffer overflow vulnerability [CWE-122] in FortiOS SSL-VPN 7.2.0 through 7.2.2, 7.0.0 through 7.0.8, 6.4.0 through 6.4.10, 6.2.0 through 6.2.11, 6.0.15 and earlier and FortiProxy SSL-VPN 7.2.0 through 7.2.1, 7.0.7 and earlier may allow a remote unauthenticated attacker to execute arbitrary code or commands via specifically crafted requests.

Live · internet exposure

8 internet-exposed hosts are running an affected version of CVE-2022-42475 right now.

across 8 countries (Canada, India, Indonesia, Italy, South Africa)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
9.8
EG Score
9.8(high)
EG Risk
99(Act)
EG Risk 99/100SSVC: Act

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
Severity98% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
EPSS PROB
99%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

January 2, 2023

Last Modified

October 24, 2025

Advisory Details (2)

Auto-updated Sep 17, 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-2022-42475
generic

Just a moment

https://fortiguard.com/psirt/FG-IR-22-398

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 49× in last 7d / 212× 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 761 total refreshes for this CVE.

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

Publicly available exploits

(4 references)

Working exploit code is in the public domain (4 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoC0xhaggis/CVE-2022-42475
    First seen Jun 21, 2023

    An exploit for CVE-2022-42475, a pre-authentication heap overflow in Fortinet networking products

    Open source ↗
  • GitHub PoCP4x1s/CVE-2022-42475-RCE-POC
    First seen Mar 23, 2023

    CVE-2022-42475 飞塔RCE漏洞 POC

    Open source ↗
  • GitHub PoCAmir-hy/cve-2022-42475
    First seen Mar 16, 2023

    FortiOS buffer overflow vulnerability

    Open source ↗
  • GitHub PoCscrt/cve-2022-42475
    First seen Feb 23, 2023

    POC code to exploit the Heap overflow in Fortinet's SSLVPN daemon

    Open source ↗

Frequently asked(6)

What is CVE-2022-42475?
CVE-2022-42475 is a critical vulnerability published on January 2, 2023. A heap-based buffer overflow vulnerability [CWE-122] in FortiOS SSL-VPN 7.2.0 through 7.2.2, 7.0.0 through 7.0.8, 6.4.0 through 6.4.10, 6.2.0 through 6.2.11, 6.0.15 and earlier and FortiProxy SSL-VPN 7.2.0 through 7.2.1, 7.0.7 and earlier may allow a remote unauthenticated attacker to execute…
When was CVE-2022-42475 disclosed?
CVE-2022-42475 was first published in the National Vulnerability Database on January 2, 2023, 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-2022-42475 actively exploited?
Yes. CISA added CVE-2022-42475 to the Known Exploited Vulnerabilities catalog on December 13, 2022, affecting Fortinet FortiOS. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2022-42475?
CVE-2022-42475 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2022-42475?
CVE-2022-42475 affects Fortinet FortiOS. 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-2022-42475?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-42475, 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-2022-42475

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