Buffer overflow in Sonicwall Sma 100 Series
CVE-2025-40597
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.
Vulnerability class: Buffer Overflow
EPSS: 0.276 (97.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Sonicwall Sma 100 Series — versions 10.2.1.15-81sv and earlier versions
- Sonicwall Sma_210
- Sonicwall Sma_210_firmware
- Sonicwall Sma_410
- Sonicwall Sma_410_firmware
- Sonicwall Sma_500v
- Sonicwall Sma_500v_firmware
Weakness classification (CWE)
Public proof-of-concept exploits
References
- PSIRT@sonicwall.com (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-40597?
- CVE-2025-40597 is a high-severity vulnerability in Sonicwall Sma 100 Series, classified under Heap-based Buffer Overflow. CVSS score: 7.5/10. Published 2025-07-23.
- How severe is CVE-2025-40597?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2025-40597 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.