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TI-2021-12264 Aliases CVE-2021-32593GHSA-r38h-c57m-fw47

Broken or risky cryptographic algorithm in Fortinet FortiWAN

Priority LOW 36CWE-327Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-327.

Summary

A use of a broken or risky cryptographic algorithm vulnerability [CWE-327] in the Dynamic Tunnel Protocol of FortiWAN before 4.5.9 may allow an unauthenticated remote attacker to decrypt and forge protocol communication messages.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00572 47th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
FortinetFortinet FortiWANFortiWAN before 4.5.9—No fix listedCNA
  • Fortinet FortiWAN VendorFortinet Affected FortiWAN before 4.5.9 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:fortinet:fortiwan:*:*:*:*:*:*:*:*up to 4.5.8VulnerableFortinet
  • cpe:2.3:a:fortinet:fortiwan:*:*:*:*:*:*:*:* Versions up to 4.5.8 Vulnerable ·Fortinet

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-32593
  2. 2026-10-03 Alias added: GHSA-r38h-c57m-fw47

References

Patch 1

  • TI-2021-08052 Authentication bypass in Fortinet FortiWAN CVSS 3.1CRITICAL 9.8
  • TI-2021-08064 SQL injection in Fortinet FortiWAN CVSS 3.1CRITICAL 9.8
  • TI-2021-08062 Out-of-bounds write in Fortinet FortiWAN CVSS 3.1CRITICAL 9.8
  • TI-2016-04287 Fortinet FortiWan (formerly AscernLink) before 4.2.5 allows remote authenticated users… CVSS 3.0HIGH 8.8
  • TI-2022-14879 OS command injection in Fortinet FortiWAN CVSS 3.1HIGH 8.8
  • TI-2021-06326 OS command injection in Fortinet FortiWAN CVSS 3.1HIGH 8.8
See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences