CVE-2025-60695: e7350 Stack Overflow — Exploit

Description

A stack-based buffer overflow vulnerability exists in the mtk_dut binary of Linksys E7350 routers (Firmware 1.1.00.032). The function sub_4045A8 reads up to 256 bytes from /sys/class/net/%s/address into a local buffer and then copies it into caller-provided buffer a1 using strcpy without boundary checks. Since a1 is often allocated with significantly smaller sizes (20-32 bytes), local attackers controlling the contents of /sys/class/net/%s/address can trigger buffer overflows, leading to memory corruption, denial of service, or potential arbitrary code execution.

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CVSS v3.1 Score

5.9

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Weakness Type (CWE)

CWE-121 CWE-121

Affected Products

Vendor	Product	Versions
linksys	e7350_firmware	All
linksys	e7350	All

References

Exploits

https://github.com/yifan20020708/SGTaint-0-day/blob/main/Linksys/Linksys-E7350/CVE-2025-60695.md

Other References

http://linksys.com https://www.linksys.com/

Frequently Asked Questions

What is CVE-2025-60695? +

A stack-based buffer overflow vulnerability exists in the mtk_dut binary of Linksys E7350 routers (Firmware 1.1.00.032). The function sub_4045A8 reads up to 256 bytes from /sys/class/net/%s/address into a local buffer and then copies it into caller-provided buffer a1 using strcpy without boundary checks. Since a1 is often allocated with significantly smaller sizes (20-32 bytes), local attackers controlling the contents of /sys/class/net/%s/address can trigger buffer overflows, leading to memory corruption, denial of service, or potential arbitrary code execution. It has a CVSS v3.1 base score of 5.9 (MEDIUM).

How severe is CVE-2025-60695? +

CVE-2025-60695 has a CVSS v3.1 score of 5.9 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-60695? +

CVE-2025-60695 affects products from linksys, specifically: e7350, e7350_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-60695? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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