Risk Letters

Exploited vulnerability

CVE-2025-68686

TLP:CLEAR

Fortinet FortiOS Exposure of Sensitive Information to an Unauthorized Actor Vulnerability

Fortinet FortiOS contains an exposure of sensitive information to an unauthorized actor vulnerability. This may allow a remote unauthenticated attacker to bypass the patch developed for the symbolic link persistency mechanism observed in some post-exploit cases, via crafted HTTP requests. An attacker would need first to have compromised the product via another vulnerability, at filesystem level.

Facts

  • Vendor: Fortinet
  • Product: FortiOS
  • CVSS: 5.9
  • EPSS (probability of exploitation within 30 days): 29.5 %
  • On CISA's Known Exploited Vulnerabilities list since: 27 July 2026
  • First known exploitation: 27 July 2026
  • CISA's deadline for US federal agencies: 10 August 2026
  • Weakness: CWE-200
  • First seen by Risk Letters: 27 July 2026

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD