CVE-2024-40764

HIGH
MEDIUM Priority: 0.05 BB Relevance: 75/100
Published: 2024-07-18 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

Heap-based buffer overflow vulnerability in the SonicOS IPSec VPN allows an unauthenticated remote attacker to cause Denial of Service (DoS).

Weakness Classification (2)

Affected Software (1)

VendorProductVersion
sonicwall sonicos < 6.5.4.v-21s-rc2457

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

0.70%
Raw Score 0.007000
Percentile 53.7%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00700
2026-11-12
0.00700
2026-11-10
0.00700
2026-11-09
0.00700

Intelligence Sources

nvd ref →