- CVE-2025-64446 permits unauthenticated attackers to run admin instructions on FortiWeb WAF techniques
- Actively exploited within the wild; impacts variations 7.0.0–8.0.1, patched in 8.0.2
- CISA added it to KEV; Fortinet urges instant patching or disabling internet-facing HTTP/HTTPS interfaces
Fortinet has launched a repair for a essential vulnerability in its FortiWeb net software firewall (WAF), and has urged prospects to replace instantly, because the flaw is being actively exploited within the wild.
The corporate printed a brand new safety advisory, saying it addressed a relative path traversal vulnerability that enables unauthenticated menace actors to execute administrative instructions on the system.
The bug is now tracked as CVE-2025-64446 and was given a severity rating of 9.8/10, which means it’s essential and that it must be addressed promptly.
Abusing the zero-day
The bug impacts a number of variations of the WAF:
8.0.0 by means of 8.0.1,
7.6.0 by means of 7.6.4,
7.4.0 by means of 7.4.9,
7.2.0 by means of 7.2.11,
7.0.0 by means of 7.0.11
It was fastened in model 8.0.2, safety researchers confirmed.
The repair must be utilized with out hesitation, Fortinet added, stating that the bug was “noticed to be exploited within the wild.”
Certainly, it’s, as a number of safety outfits have been warning about this one for weeks. In early October 2025, safety researchers from Defused printed a Proof-of-Idea (PoC) for an “unknown Fortinet exploit”, adopted by a demo exploit printed by watchTowr Labs.
People who can’t apply the repair instantly ought to disable HTTP or HTTPS for internet-facing interfaces, Fortinet suggested. “If the HTTP/HTTPS Administration interface is internally accessible solely as per greatest apply, the danger is considerably lowered.” Additionally, after patching, customers ought to assessment their configuration for and assessment logs for surprising modifications, and to see if any new admin accounts had been added.
The bug was additionally added to CISA’s Recognized Exploited Vulnerabilities (KEV) catalog, which means federal businesses have till November 21 to patch or cease utilizing Fortinet’s WAF.
“Any such vulnerability is a frequent assault vector for malicious cyber actors and poses important dangers to the federal enterprise,” CISA warned.
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