vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2025-53847

HIGH
8.8
CVSS Score
Published: April 14, 2026 at 03:38 PM UTC
Updated: October 7, 2026 at 09:10 AM UTC
2 products affected across 2 vendorsFortiOSRUGGEDCOM APE1808 Firmware

Using FortiOS by Fortinet?

Get instant alerts when new vulnerabilities affect FortiOS - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
HIGH8.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

FortiOS· Fortinet
95%
6.2.9 ≤ v ≤ 6.2.176.2.9 ≤ v < 7.0.186.4.0 ≤ v ≤ 6.4.167.0.0 ≤ v ≤ 7.0.177.2.0 ≤ v ≤ 7.2.117.2.0 ≤ v < 7.2.127.4.0 ≤ v ≤ 7.4.87.4.0 ≤ v < 7.4.97.6.0 ≤ v ≤ 7.6.37.6.0 ≤ v < 7.6.46.2.106.2.116.2.126.2.136.2.146.2.156.2.166.2.176.2.96.4.06.4.16.4.106.4.116.4.126.4.136.4.146.4.156.4.166.4.26.4.36.4.46.4.56.4.66.4.76.4.86.4.97.0.07.0.17.0.107.0.117.0.127.0.137.0.147.0.157.0.167.0.177.0.27.0.37.0.47.0.57.0.67.0.77.0.87.0.97.2.07.2.17.2.107.2.117.2.27.2.37.2.47.2.57.2.67.2.77.2.87.2.97.4.07.4.17.4.27.4.37.4.47.4.57.4.67.4.77.4.87.6.07.6.17.6.27.6.3
Affected range stops below 7.0.18, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.2.12, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.4.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.6.4, so it looks safe — our inference, not a vendor statement
RUGGEDCOM APE1808 Firmware· Siemens
60%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor Advisory
Source: cverecord
https://fortiguard.fortinet.com/psirt/FG-IR-26-125
Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
https://cert-portal.siemens.com/productcert/html/ssa-975644.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGH[email protected]
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-306

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card