CVE-2025-40597

Published Jul 23, 2025

Last updated 24 days ago

SMA100

Overview

AI description

Automated description summarized from trusted sources.

CVE-2025-40597 is a heap-based buffer overflow vulnerability found in the SMA100 series web interface. It can be triggered by a remote, unauthenticated attacker. The vulnerability lies in the mod_httprp.so component, which handles HTTP requests. Specifically, it occurs during the parsing of the Host: header. The vulnerability is due to an incorrect use of the "safe" version of the sprintf function, which allows an attacker to write past allocated memory when crafting a malicious Host: header. This can corrupt adjacent memory and potentially lead to a denial of service or remote code execution.

Description: A Heap-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: 7.5
Impact score: 3.6
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity: HIGH

Weaknesses

PSIRT@sonicwall.com: CWE-122

Hype score: Not currently trending

Configurations

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References

Sources include official advisories and independent security research.