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Fortinet PSIRT AdvisoriesFG-IR-26-154

Buffer overread in authd and wad daemon

MediumVendor CVSS 4.1 / 10 2 CVEs Published Jul 14, 2026 at 7:00 AM UTC

Summary

CVSSv3 Score:

4.1

A buffer over-read vulnerability [CWE-126] in FortiOS, FortiProxy, and FortiSASE may allow an authenticated remote attacker to return a portion of device memory in the redirect response via submitting a specially crafted request.

Revised on 2026-07-14 00:00:00

Products covered

  • FortiOS

  • FortiProxy

  • FortiSASE

Remediation

Separate remediation guidance was not included in the collected bulletin.

CVEs in this advisory 2

Update history

What changed in later vendor updates

SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.

    • Added CVEs: CVE-2025-43892, CVE-2026-59840.

Updates

  1. Published by Fortinet

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Confirmed at the source

    Our collector saw this advisory during a later source check.