CVE-2023-7222: x2000r Buffer Overflow — Exploit

Description

A vulnerability was found in Totolink X2000R 1.0.0-B20221212.1452. It has been declared as critical. This vulnerability affects the function formTmultiAP of the file /bin/boa of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-249856. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Is your site exposed to CVE-2023-7222?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

7.2

HIGH

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

Weakness Type (CWE)

CWE-120 CWE-120

CWE-787 Out-of-bounds Write

Affected Products

Vendor	Product	Versions
totolink	x2000r_firmware	All
totolink	x2000r	All

References

Exploits

https://github.com/jylsec/vuldb/blob/main/TOTOLINK/X2000R/formTmultiAP/README.md https://github.com/jylsec/vuldb/blob/main/TOTOLINK/X2000R/formTmultiAP/README.md

Other References

https://vuldb.com/?ctiid.249856 https://vuldb.com/?id.249856 https://vuldb.com/?ctiid.249856 https://vuldb.com/?id.249856

Frequently Asked Questions

What is CVE-2023-7222? +

A vulnerability was found in Totolink X2000R 1.0.0-B20221212.1452. It has been declared as critical. This vulnerability affects the function formTmultiAP of the file /bin/boa of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-249856. NOTE: The vendor was contacted early about this disclosure but did not respond in any way. It has a CVSS v3.1 base score of 7.2 (HIGH).

How severe is CVE-2023-7222? +

CVE-2023-7222 has a CVSS v3.1 score of 7.2 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2023-7222? +

CVE-2023-7222 affects products from totolink, specifically: x2000r, x2000r_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-7222? +

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.

Related Vulnerabilities

CVE-2026-27820

zlib is a Ruby interface for the zlib compression/decompression library. Versions 3.0.0 and below, 3.1.0, 3.1.1, 3.2.0 and 3.2.1 contain …

CVE-2025-11698

A denial-of-service issue exists in 5380/5480/5580 controllers boot firmware lower than version 1.072. This vulnerability could potentially allow a malicious …

CVE-2025-12012

A denial-of-service issue exists in 5380/5480/5580 controllers. This vulnerability could potentially allow a malicious user to write invalid file data …

CVE-2025-12011

A denial-of-service issue exists in 5370/5570 controllers. This vulnerability could potentially allow a remote user to load an invalid project, …

CVE-2024-13503

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in Newtec NTC2218, NTC2250, NTC2299 on Linux, PowerPC, ARM …

CVE-2024-6199

An unauthenticated attacker on the WAN interface, with the ability to intercept Dynamic DNS (DDNS) traffic between DDNS services and …

CVE-2023-7222