CVE-2025-40596

Published Jul 23, 2025

Last updated 6 days ago

SMA100

Overview

AI description

Automated description summarized from trusted sources.

CVE-2025-40596 is a stack-based buffer overflow vulnerability found in the web interface of the SonicWall SMA100 series. This vulnerability allows a remote, unauthenticated attacker to potentially cause a denial of service (DoS) or achieve code execution. The vulnerability is located in the `/usr/src/EasyAccess/bin/httpd` binary, which handles incoming HTTP requests to the SonicWall SSLVPN. The stack-based buffer overflow can be triggered by sending a malformed HTTP request.

Description: A Stack-based buffer overflow vulnerability in the SMA100 series web interface allows remote, unauthenticated attacker to cause Denial of Service (DoS) or potentially results in code execution.
Source: PSIRT@sonicwall.com
NVD status: Analyzed
Products: sma_500v_firmware, sma_210_firmware, sma_410_firmware

Risk scores

CVSS 3.1

Type: Secondary
Base score: 7.3
Impact score: 3.4
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Severity: HIGH

Weaknesses

PSIRT@sonicwall.com: CWE-121

Hype score: Not currently trending

Configurations

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References

Sources include official advisories and independent security research.