Is CVE-2025-64447 in the CISA KEV catalog?

No. CVE-2025-64447 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-64447?

CVE-2025-64447 has a CVSS v3 base score of 8.1 (HIGH).

What is the EPSS score for CVE-2025-64447?

CVE-2025-64447 has an EPSS score of 7.49% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2025-64447?

No published fix for CVE-2025-64447 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2025-64447

HIGHEPSS 94th pctl

8.1

CVSS v3

NVD

Description

A reliance on cookies without validation and integrity checking vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.1, FortiWeb 7.6.0 through 7.6.5, FortiWeb 7.4.0 through 7.4.10, FortiWeb 7.2.0 through 7.2.11, FortiWeb 7.0.0 through 7.0.11 may allow an unauthenticated attacker to execute arbitrary operations on the system via crafted HTTP or HTTPS request via forged cookies, requiring prior knowledge of the FortiWeb serial number.

CWE-565

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

7.49%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Vendor Advisory1

fortiguard.fortinet.com

Related Vulnerabilities

Other CWE-565 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2026-0257	Critical	9.1	87%	KEV + Ransom	Fix
CVE-2023-35885	Critical	9.8	75%	-	Fix
CVE-2008-5784	Critical	9.8	7.1%	-	-
CVE-2020-7070	Medium	4.3	5.0%	-	Fix
CVE-2019-7266	Critical	9.8	4.6%	-	-
CVE-2025-65212	Critical	9.8	4.6%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-12-09.