What is CVE-2025-40596?

CVE-2025-40596 is a vulnerability in Sonicwall Sma 100 Series, classified under Stack-based Buffer Overflow. Published 2025-07-23.

Is CVE-2025-40596 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Sonicwall Sma 100 Series

CVE-2025-40596

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.

Vulnerability class: Buffer Overflow

EPSS: 0.583 (99.0th percentile) — read the EPSS interpretation.

Affected products

Sonicwall Sma 100 Series — versions 10.2.1.15-81sv and earlier versions

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

psirt.global.sonicwall.com/vuln-detail/SNWLID-2025-0012 (vendor-advisory)

Frequently asked questions

What is CVE-2025-40596?: CVE-2025-40596 is a vulnerability in Sonicwall Sma 100 Series, classified under Stack-based Buffer Overflow. Published 2025-07-23.
Is CVE-2025-40596 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.