CVE-2024-40763

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-12-05 · updated 2026-06-17
Weakness: CWE-122

Description

Heap-based buffer overflow vulnerability in the SonicWall SMA100 SSLVPN due to the use of strcpy. This allows remote authenticated attackers to cause Heap-based buffer overflow and potentially lead to code execution.

Affected products

SonicWall Sma 200 Firmware: before 10.2.1.14-75sv — fixed in 10.2.1.14-75sv
SonicWall Sma 210 Firmware: before 10.2.1.14-75sv — fixed in 10.2.1.14-75sv
SonicWall Sma 400 Firmware: before 10.2.1.14-75sv — fixed in 10.2.1.14-75sv
SonicWall Sma 410 Firmware: before 10.2.1.14-75sv — fixed in 10.2.1.14-75sv
SonicWall Sma 500V Firmware: before 10.2.1.14-75sv — fixed in 10.2.1.14-75sv

How to fix

Upgrade to a fixed version: SonicWall Sma 200 Firmware 10.2.1.14-75sv; SonicWall Sma 210 Firmware 10.2.1.14-75sv; SonicWall Sma 400 Firmware 10.2.1.14-75sv; SonicWall Sma 410 Firmware 10.2.1.14-75sv; SonicWall Sma 500V Firmware 10.2.1.14-75sv. Check the vendor advisory for mitigations.

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0018

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