CVE-2025-8019: lbt-t300-t310 Buffer Overflow — Exploit

Description

A vulnerability was found in Shenzhen Libituo Technology LBT-T300-T310 2.2.3.6. It has been rated as critical. Affected by this issue is the function sub_40B6F0 of the file at/appy.cgi. The manipulation of the argument wan_proto leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

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CVSS v3.1 Score

8.8

HIGH

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

Weakness Type (CWE)

CWE-119 Buffer Overflow

CWE-120 CWE-120

Affected Products

Vendor	Product	Versions
szlbt	lbt-t300-t310_firmware	All
szlbt	lbt-t300-t310	All

References

Exploits

https://github.com/turing-wue/IoT-vul/blob/main/LBT-T300/README.md https://github.com/turing-wue/IoT-vul/blob/main/LBT-T300/README.md#payload https://github.com/turing-wue/IoT-vul/blob/main/LBT-T300/README.md https://github.com/turing-wue/IoT-vul/blob/main/LBT-T300/README.md#payload

Other References

https://vuldb.com/?ctiid.317222 https://vuldb.com/?id.317222 https://vuldb.com/?submit.619530

Frequently Asked Questions

What is CVE-2025-8019? +

A vulnerability was found in Shenzhen Libituo Technology LBT-T300-T310 2.2.3.6. It has been rated as critical. Affected by this issue is the function sub_40B6F0 of the file at/appy.cgi. The manipulation of the argument wan_proto leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2025-8019? +

CVE-2025-8019 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-8019? +

CVE-2025-8019 affects products from szlbt, specifically: lbt-t300-t310, lbt-t300-t310_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-8019? +

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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