NCSC-2026-0398 [1.00] [M/H] Kwetsbaarheid verholpen in Fortinet FortiMail — NCSC-2026-0398

Summary

Fortinet heeft een kwetsbaarheid verholpen in FortiMail. FortiMail bevat een kritieke kwetsbaarheid (CVE-2026-104286) in de verwerking van bestandspaden, veroorzaakt door een combinatie van Path Traversal (CWE-22) en onvoldoende neutralisatie van NULL-bytes (CWE-158). Een niet-geauthenticeerde aanvaller kan via speciaal vervaardigde HTTP- of HTTPS-verzoeken willekeurige bestanden op het onderliggende systeem…

Timeline

Published by source

2026-10-02

Risk context

• Reported severity or threat level: high.
• Review exposure for the affected product or family: Security advisory.

Product

Security advisory

What to do

General, cautious steps (verify details in the official source):

• Prioritize patching or mitigation immediately (treat as actively risky).
• Identify affected product versions in your inventory and verify whether you are impacted.
• Apply vendor patches/updates or recommended mitigations as soon as available.
• Read the official advisory for exact affected versions and remediation steps.

Official advisory

• Read the official source
• CVE Record
• NVD

Evidence and provenance

Canonical advisory ID

NCSC-2026-0398

Source

NCSC-NL

Vendor

NCSC-NL

Published by source

2026-10-02

Last source activity

2026-10-02

Additional identifiers

CVE-2026-104286

Curated by

hlukh.ch

Related advisories and connections

These advisories are connected by shared CVE, product, vendor, source, or time signals.