CVE-2026-71407

highpriority · track · 32EPSS 0.005 · 44 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.51% (44th) EPSS

CVSS 8.1 · high

Is it mine?

20 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

A Stack-based Buffer Overflow vulnerability [CWE-121] vulnerability in Fortinet FortiOS 7.6.1 through 7.6.6 may allow an unauthenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands in the context of the WAD daemon via crafted sockets, only if the explicit proxy is configured with Kerberos authentication and SOCKS enabled.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedRUGGEDCOM APE1808siemens_psirt
Update Fortigate NGFW to V7.6.7 or later following the secure update recommendation procedure. Contact customer support to receive detailed information

cvss

Technical severity, 0–10. One row per scoring source.

8.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.1–8.1

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.2 · impact 5.9

v3.15.6mediumAV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:Lsecondary · FSTEC (BDU) RU

v3.15.1mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:Csecondary · ENISA EU

v3.15.6mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:Lsecondary · psirt@fortinet.comexploitability 2.2 · impact 3.4

v3.15.6mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:Lsecondary · Siemens ProductCERT DE

v3.17.4highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-121USCWE-121USCWE-121US

affected products (20)

Products and version ranges known to be affected.

Fortinet FortiOS <7.6.7all versionscert_bundDE
Fortinet FortiOS< 7.6.7cert_bundDE
Fortinet FortiOS≤ 7.6.1 ≤7.6.6enisa_euvdEU
Fortinet FortiPAM≤ 1.7.0 ≤1.7.2enisa_euvdEU
Fortinet FortiPAM≤ 1.4.0 ≤1.4.3enisa_euvdEU
Fortinet FortiPAM≤ 1.8.0 ≤1.8.4enisa_euvdEU
Fortinet FortiPAM≤ 1.2.0enisa_euvdEU
Fortinet FortiPAM≤ 1.3.0 ≤1.3.1enisa_euvdEU
Fortinet FortiPAM≤ 1.6.0 ≤1.6.2enisa_euvdEU
Fortinet FortiPAM≤ 1.0.0 ≤1.0.3enisa_euvdEU
Fortinet FortiPAM≤ 1.5.0 ≤1.5.1enisa_euvdEU
Fortinet FortiPAM≤ 1.1.0 ≤1.1.2enisa_euvdEU
Fortinet FortiProxy≤ 7.6.0 ≤7.6.4enisa_euvdEU
Fortinet FortiProxy≤ 7.2.0 ≤7.2.16enisa_euvdEU
Fortinet FortiProxy≤ 7.4.0 ≤7.4.11enisa_euvdEU
Fortinet FortiProxy≤ 7.0.0 ≤7.0.23enisa_euvdEU
Fortinet Inc. FortiOS7.6.1 → 7.6.7fstec_bduRU
fortinet fortios7.6.1 → 7.6.7nvdUScpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
Siemens RUGGEDCOM APE1808≤ vers:all/*siemens_psirtDE
Siemens RUGGEDCOM APE1808 with Fortinet NGFW≤ vers:all/*siemens_psirtDE

advisories (2)

Vendor and ecosystem advisories describing this.

SSA-127084SSA-127084: Multiple Vulnerabilities in Fortigate NGFW before V7.6.7 on RUGGEDCOM APE1808 Devices2026-08-11csaf · siemens_psirtDE
Fortinet has published information on vulnerabilities in FortiOS. This advisory lists the related Siemens Industrial products. Siemens recommends to contact customer support for additional information, and follow Fortinet advisory for workarounds and mitigation measures.
WID-SEC-W-2026-2812Fortinet FortiOS: Mehrere Schwachstellen ermöglichen Codeausführung und DoSDeutsch2026-08-12csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Fortinet FortiOS ausnutzen, um beliebigen Programmcode auszuführen oder einen Denial-of-Service-Zustand auszulösen.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd siemens_psirt NVD CVE.org MITRE

published 2026-08-12modified 2026-10-24

references (4)

External citations — patches, advisories, analysis.

scry

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