CVE-2025-7758 | THREATINT

Description

A vulnerability, which was classified as critical, has been found in TOTOLINK T6 up to 4.1.5cu.748_B20211015. Affected by this issue is the function setDiagnosisCfg of the file /cgi-bin/cstecgi.cgi of the component HTTP POST Request Handler. The manipulation of the argument ip leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

Eine kritische Schwachstelle wurde in TOTOLINK T6 bis 4.1.5cu.748_B20211015 entdeckt. Betroffen davon ist die Funktion setDiagnosisCfg der Datei /cgi-bin/cstecgi.cgi der Komponente HTTP POST Request Handler. Durch die Manipulation des Arguments ip mit unbekannten Daten kann eine buffer overflow-Schwachstelle ausgenutzt werden. Die Umsetzung des Angriffs kann dabei über das Netzwerk erfolgen. Der Exploit steht zur öffentlichen Verfügung.

Reserved 2025-07-17 | Published 2025-07-17 | Updated 2025-07-17 | Assigner VulDB

HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

HIGH: 8.8CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

9.0AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Problem types

Buffer Overflow

Memory Corruption

Product status

4.1.5cu.748_B20211015

affected

Timeline

2025-07-17:	Advisory disclosed
2025-07-17:	VulDB entry created
2025-07-17:	VulDB entry last update

Credits

reisen_1943 (VulDB User) reporter

References

vuldb.com/?id.316748 (VDB-316748 | TOTOLINK T6 HTTP POST Request cstecgi.cgi setDiagnosisCfg buffer overflow) vdb-entry technical-description

vuldb.com/?ctiid.316748 (VDB-316748 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.615734 (Submit #615734 | TOTOLINK T6 V4.1.5cu.748_B20211015 Buffer Overflow) third-party-advisory

github.com/...inBrian/Public/blob/main/Totolink T6/Vuln/3.md related

github.com/...inBrian/Public/blob/main/Totolink T6/Vuln/3.md exploit

www.totolink.net/ product

cve.org (CVE-2025-7758)

nvd.nist.gov (CVE-2025-7758)

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