Is CVE-2025-53845 in the CISA KEV catalog?

No. CVE-2025-53845 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-53845?

CVE-2025-53845 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2025-53845?

CVE-2025-53845 has an EPSS score of 0.44% (35th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-53845?

Upgrade fortianalyzer to 7.6.4 or later.

CVE & CISA-KEV Catalog

CVE-2025-53845

MEDIUM

6.5

CVSS v3

NVD

Description

An improper authentication vulnerability [CWE-287] in Fortinet FortiAnalyzer version 7.6.0 through 7.6.3 and before 7.4.6 allows an unauthenticated attacker to obtain information pertaining to the device's health and status, or cause a denial of service via crafted OFTP requests.

CWE-287Improper Authentication

How to fix

Remediation Available

fortianalyzerNVD

Affected:>= 7.6.0, < 7.6.4Fixed in:7.6.4CVE-2025-53845derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityLow

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

Exploit Intelligence

0.44%probability of exploitation in 30 days

35thpercentile

Low risk: more likely to be exploited than 35% of all known CVEs.

References

Vendor Advisory1

fortiguard.fortinet.com

Related Vulnerabilities

Other CWE-287 (Improper Authentication) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-35082	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-35078	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2017-7921	Critical	9.8	100%	KEV	-
CVE-2024-7593	Critical	9.8	100%	KEV	-
CVE-2023-46805	High	8.2	100%	KEV + Ransom	-
CVE-2022-40684	Critical	9.8	100%	KEV + Ransom	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 2025-10-15.