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High severity7.5NVD Advisory· Published Nov 20, 2025· Updated Jun 17, 2026

CVE-2025-40601

CVE-2025-40601

Description

A Stack-based buffer overflow vulnerability in the SonicOS SSLVPN service allows a remote unauthenticated attacker to cause Denial of Service (DoS), which could cause an impacted firewall to crash.

Affected products

3
  • SonicWall/Sonicos2 versions
    cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:*range: >=7.1.1-7040,<7.3.1-7013
    • (no CPE)range: 7.3.0-7012 and older versions
  • SonicWall/SonicOS SSLVPN portalllm-fuzzy

Patches

Vulnerability mechanics

References

1

News mentions

0

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