CVE-2025-40601

HIGH
MEDIUM Priority: 0.07 BB Relevance: 75/100
Published: 2025-11-20 Modified: 2026-11-09 First seen: 2026-11-09 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: None
A: High

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
sonicwall sonicos 7.1.1-7040 – 7.3.1-7013

References & Advisories (1)

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.91%
Raw Score 0.009140
Percentile 60.6%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00914
2026-11-12
0.00914
2026-11-10
0.00914
2026-11-09
0.00914

Intelligence Sources

nvd ref →