High SEVERITY — Vulnerability

CVE-2025-53844 — A out-of-bounds write vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0

A out-of-bounds write 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 allows attacker to execute unauthorized code or commands via specially crafted packets.

Platform
FortiGate / FortiOS
CVE Record
CVE-2025-53844
CVSS Score
8.8/10
Published
12 May 2026
Views
40
Primary source: Review the official advisory at nvd.nist.gov Go to Source

Summary

A out-of-bounds write 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 allows attacker to execute unauthorized code or commands via specially crafted packets.

Assessment

  • CVE: CVE-2025-53844
  • CVSS taban puanı: 8.8
  • Vektör: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • Kaynak: NVD kaydı

References

Action

  • Etkilenen sistemleri envanterden doğrulayın
  • Üretici yamasını bakım penceresinde uygulayın
  • Yama uygulanana kadar erişimi ağ katmanında kısıtlayın
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FortiGate / FortiOS — Related Advisories

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