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High severity8.1CISA KEVNVD Advisory· Published Jan 13, 2026· Updated Sep 10, 2026

CVE-2025-25249

CVE-2025-25249

Description

A heap-based buffer overflow 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, FortiOS 7.0.0 through 7.0.17, FortiOS 6.4 all versions, FortiSwitchManager 7.2.0 through 7.2.6, FortiSwitchManager 7.0.0 through 7.0.5 allows attacker to execute unauthorized code or commands via specially crafted packets

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

8
  • Fortinet/Fortiosllm-fuzzy3 versions
    7.6.0 through 7.6.3, 7.4.0 through 7.4.8, 7.2.0 through 7.2.11, 7.0.0 through 7.0.17, 6.4 all versions+ 2 more
    • (no CPE)range: 7.6.0 through 7.6.3, 7.4.0 through 7.4.8, 7.2.0 through 7.2.11, 7.0.0 through 7.0.17, 6.4 all versions
    • cpe:2.3:o:fortinet:fortios:7.6.2:*:*:*:*:*:*:*range: 7.6.0
    • cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*range: >=6.4.0,<6.4.17
  • Fortinet/Fortiswitchmanagerllm-fuzzy3 versions
    7.2.0 through 7.2.6, 7.0.0 through 7.0.5+ 2 more
    • (no CPE)range: 7.2.0 through 7.2.6, 7.0.0 through 7.0.5
    • cpe:2.3:a:fortinet:fortiswitchmanager:7.2.5:*:*:*:*:*:*:*range: 7.2.2
    • cpe:2.3:a:fortinet:fortiswitchmanager:*:*:*:*:*:*:*:*range: >=7.0.0,<7.0.6
  • Fortinet/FortiSASE2 versions
    cpe:2.3:a:fortinet:fortisase:25.1.39:*:*:*:-:*:*:*+ 1 more
    • cpe:2.3:a:fortinet:fortisase:25.1.39:*:*:*:-:*:*:*
    • cpe:2.3:a:fortinet:fortisase:25.1.51:*:*:*:-:*:*:*

Patches

Vulnerability mechanics

References

4

News mentions

9