U.S. CISA adds Fortinet Multiple Products and BeyondTrust Remote Support flaws to its Known Exploited Vulnerabilities catalog
CISA added actively exploited Fortinet and BeyondTrust flaws to KEV, with a federal fix deadline of October 19.
Authenticated path traversal in Fortinet FortiOS and related products
CISA: Fortinet Multiple Products Path Traversal Vulnerability
CVE-2025-61624 is a path traversal flaw (CWE-22) in multiple Fortinet products that fails to keep a pathname inside a restricted directory. An attacker who is already authenticated with an administrator profile and at least read-write permissions can use specific CLI commands to write or delete arbitrary files. The impact is high integrity and availability loss with no confidentiality impact scored (CVSS 3.1 base 6.5); it is not an unauthenticated remote code execution bug. Affected products are FortiOS, FortiPAM, FortiProxy, and FortiSwitchManager in the version ranges listed by Fortinet. CISA added it to the Known Exploited Vulnerabilities catalog on 2026-10-16, so exploitation in the wild is confirmed, while ransomware use is listed as unknown and no public proof-of-concept is known; related reporting describes stealthy FortiGate implants but does not by itself identify this CVE as the sole intrusion path.
What to do: Apply Fortinet's fixes or mitigations for every listed FortiOS, FortiPAM, FortiProxy, and FortiSwitchManager release, following CISA BOD 26-04; do not treat a specific build as safe unless the vendor advisory names it. Limit CLI access to trusted administrators with read-write profiles, and review admin accounts and logs for unexpected file writes or deletions. Because this CVE is in CISA's KEV catalog, also follow CISA's forensics triage guidance and discontinue use if a mitigation is unavailable.
| Product | Affected |
|---|---|
| Fortinet FortiOS | 7.6.0 through 7.6.4, 7.4.0 through 7.4.9, 7.2 all versions, 7.0 all versions, 6.4 all versions |
| Fortinet FortiPAM | 1.7.0, 1.6 all versions, 1.5 all versions, 1.4 all versions, 1.3 all versions, 1.2 all versions, 1.1 all versions, 1.0 all versions |
| Fortinet FortiProxy | 7.6.0 through 7.6.4, 7.4.0 through 7.4.11, 7.2 all versions, 7.0 all versions |
| Fortinet FortiSwitchManager | 7.2.0 through 7.2.7, 7.0.0 through 7.0.6 |
Order-of-magnitude estimate by the model from install counts, market share and public scan data it knows; verify before quoting.
An Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') [CWE-22] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions, FortiPAM 1.7.0, FortiPAM 1.6 all versions, FortiPAM 1.5 all versions, FortiPAM 1.4 all versions, FortiPAM 1.3 all versions, FortiPAM 1.2 all versions, FortiPAM 1.1 all versions, FortiPAM 1.0 all versions, FortiProxy 7.6.0 through 7.6.4, FortiProxy 7.4.0 through 7.4.11, FortiProxy 7.2 all versions, FortiProxy 7.0 all versions, FortiSwitchManager 7.2.0 through 7.2.7, FortiSwitchManager 7.0.0 through 7.0.6 may allow an authenticated attacker with admin profile and at least read-write permissions to write or delete arbitrary files via specific CLI commands.
CISA added actively exploited Fortinet and BeyondTrust flaws to KEV, with a federal fix deadline of October 19.
CISA added CVE-2025-61624 to KEV; the memory-only implant rides legitimate FortiGate process traffic.
Unit 42 says CL-STA-0954 used Fortinet flaws to deploy memory-resident PEERSTITCH against a telecom provider.
Unit 42 says UNC5820 stole data on 500-plus FortiGates and deployed memory-resident PEERSTITCH malware.
Unit 42 says PEERSTITCH, planted through FortiManager flaws, exposed material for more than 500 firewalls.
Attackers exploited Fortinet flaws at a telecom MSP and deployed the stealthy PEERSTITCH implant on FortiGate firewalls.
Unit 42 details PEERSTITCH, a memory-resident implant used against FortiGate firewalls at a telecom MSP.
CISA added actively exploited Fortinet and BeyondTrust flaws to the Known Exploited Vulnerabilities catalog.
Authenticated admins with read-write rights can write or delete arbitrary files via CLI; the due date is October 19, 2026.
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