Is CVE-2025-53847 in the CISA KEV catalog?

No. CVE-2025-53847 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-53847?

CVE-2025-53847 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2025-53847?

CVE-2025-53847 has an EPSS score of 0.28% (20th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-53847?

Upgrade fortios to 7.6.4 or later.

CVE & CISA-KEV Catalog

CVE-2025-53847

MEDIUM

6.5

CVSS v3

NVD

Description

A missing authentication for critical function vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0.0 through 7.0.17, FortiOS 6.4 all versions, FortiOS 6.2.9 through 6.2.17 allows attacker to execute unauthorized code or commands via specially crafted packets.

CWE-306Missing Authentication for Critical Function

How to fix

Remediation Available

fortiosNVD

Affected:>= 7.6.0, < 7.6.4Fixed in:7.6.4CVE-2025-53847derived 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 VectorAdjacent

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

0.28%probability of exploitation in 30 days

20thpercentile

Low risk: more likely to be exploited than 20% of all known CVEs.

References

Vendor Advisory1

fortiguard.fortinet.com

Other references1

cert-portal.siemens.com

Related Vulnerabilities

Other CWE-306 (Missing Authentication for Critical Function) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-10271	High	7.5	100%	KEV + Ransom	-
CVE-2023-42793	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2025-3248	Critical	9.8	100%	KEV	Fix
CVE-2022-1388	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2021-37415	Critical	9.8	100%	KEV	-
CVE-2023-21839	High	7.5	100%	KEV	-

Embed a live status badge for CVE-2025-53847

Markdown

[![CVE-2025-53847](https://tridentstack.com/cve/badge/CVE-2025-53847.svg)](https://tridentstack.com/cve/CVE-2025-53847)

HTML

<a href="https://tridentstack.com/cve/CVE-2025-53847"><img src="https://tridentstack.com/cve/badge/CVE-2025-53847.svg" alt="CVE-2025-53847"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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 2026-05-12.