CVE-2022-42475

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM 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 — 3 sources updated this weekExploited in the wild
9.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • 4 internet-exposed hosts are running an affected version right now
  • Actively exploited in the wild (CISA-KEV)
  • Linked to ransomware campaigns
CISA-KEV: ExploitedEPSS: 99%CVSS: 9.8Exploit: NoneExposed: 4

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

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

across 4 countries (France, Italy, Switzerland, United States)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(medium)
EPSS
99.9%
KEV
⚠ Exploited

Published

January 2, 2023

Last Modified

October 24, 2025

Advisory Details (1)

Auto-updated May 25, 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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 89× in last 7d / 384× 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 550 total refreshes for this CVE.

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

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 ↗

Related CVEs(same CWE)

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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