TI-2024-06917 Aliases CVE-2024-7463 GHSA-gvxp-jjpg-qxx5

TOTOLINK CP900 cstecgi.cgi UploadCustomModule buffer overflow

HIGH 73CWE-120Published 2024-08-05 · Updated 2024-08-05

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

A vulnerability classified as critical was found in TOTOLINK CP900 6.3c.566. This vulnerability affects the function UploadCustomModule of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument File 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-273556. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.10978 95th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA and NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
TOTOLINK	CP900	6.3c.566	—	No fix listed	CNA

CP900 VendorTOTOLINK Affected 6.3c.566 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:totolink:cp900_firmware:6.3c.566:::::::*	6.3c.566	Vulnerable	TOTOLINK
cpe:2.3:h:totolink:cp900:-:::::::*	not specified by NVD	Running on	TOTOLINK

cpe:2.3:o:totolink:cp900_firmware:6.3c.566:*:*:*:*:*:*:* Versions 6.3c.566 Vulnerable ·TOTOLINK
cpe:2.3:h:totolink:cp900:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TOTOLINK

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2024-7463
2026-10-03 Alias added: GHSA-gvxp-jjpg-qxx5

References

Exploit 1

https://github.com/abcdefg-png/IoT-vulnerable/blob/main/TOTOLINK/CP900/UploadCustomModule.md

TI-2022-11203 TOTOLink outdoor CPE CP900 V6.3c.566_B20171026 is discovered to contain a command… CVSS 3.1CRITICAL 9.8
TI-2022-11202 TOTOLink outdoor CPE CP900 V6.3c.566_B20171026 is discovered to contain a command… CVSS 3.1CRITICAL 9.8
TI-2022-11200 TOTOLINK Technology CPE with firmware V6.3c.566 ,allows remote attackers to bypass Login. CVSS 3.1CRITICAL 9.8
TI-2022-11199 TOTOLink outdoor CPE CP900 V6.3c.566_B20171026 contains a command injection vulnerability… CVSS 3.1CRITICAL 9.8
TI-2025-28664 TOTOLINK CP900 V6.3c.1144_B20190715 was found to contain a command injection… CVSS 3.1MEDIUM 6.3
TI-2025-28653 TOTOLINK CPE CP900 V6.3c.1144_B20190715 was discovered to contain a command injection… CVSS 3.1MEDIUM 6.3

See all 12 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences