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P4

CVE-2025-53843: fortios from 6.4.0 (inclusive), before 7.4.9 (exclusive), from 7.6.0 (inclusive), before 7.6.4 (exclusive); +2 more…

CVE-2025-53843. CVSS 3.1 base score 7.5 (HIGH, Vendor/CNA). EPSS 0.00589 (percentile 0.47088), scored 17-Oct-2026.

Affected technology

fortios · from 6.4.0 (inclusive), before 7.4.9 (exclusive)
fortinet

fortios · from 7.6.0 (inclusive), before 7.6.4 (exclusive)
fortinet

FortiOS · 7.6.0 through 7.6.3, 7.4.0 through 7.4.8, 7.2.0 through 7.2.12, 7.0.0 through 7.0.18, 6.4.0 through 6.4.16
Fortinet

RUGGEDCOM APE1808 · 0 to before *
Siemens

Description’s affected range: through 7.6.3

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

Vendor/CNA’s CVSS 3.1 assessment (base score 7.5/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published

CWE
CWE-121
CCR priority
30.1 /100 (P4)
CVSS 3.1
7.5 /10 · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H · Vendor/CNA
EPSS
0.00589 · percentile 0.47088 · 2026-10-17
KEV
no

Provenance

Stable permalink: https://cybercodered.org/item/cve-cve-2025-53843.html