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 — 3 sources updated this weekExploited in the wild
9.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • 3 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: 3

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

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

across 3 countries (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(high)
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 47× in last 7d / 201× 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 374 total refreshes for this CVE.

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

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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