CVE-2025-7912 | THREATINT

Description

A vulnerability, which was classified as critical, has been found in TOTOLINK T6 4.1.5cu.748_B20211015. This issue affects the function recvSlaveUpgstatus of the component MQTT Service. The manipulation of the argument s leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Eine Schwachstelle wurde in TOTOLINK T6 4.1.5cu.748_B20211015 entdeckt. Sie wurde als kritisch eingestuft. Dies betrifft die Funktion recvSlaveUpgstatus der Komponente MQTT Service. Durch das Manipulieren des Arguments s mit unbekannten Daten kann eine buffer overflow-Schwachstelle ausgenutzt werden. Der Angriff kann über das Netzwerk passieren. Der Exploit steht zur öffentlichen Verfügung.

Reserved 2025-07-19 | Published 2025-07-20 | Updated 2025-07-20 | 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

2025-07-19:	Advisory disclosed
2025-07-19:	VulDB entry created
2025-07-19:	VulDB entry last update

Credits

reisen_1943 (VulDB User) reporter

References

vuldb.com/?id.317027 (VDB-317027 | TOTOLINK T6 MQTT Service recvSlaveUpgstatus buffer overflow) vdb-entry technical-description

vuldb.com/?ctiid.317027 (VDB-317027 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.618655 (Submit #618655 | TOTOLINK T6 V4.1.5cu.748_B20211015 Buffer Overflow) third-party-advisory

github.com/...inBrian/Public/blob/main/Totolink T6/Vuln/6.md related

github.com/...inBrian/Public/blob/main/Totolink T6/Vuln/6.md exploit

www.totolink.net/ product

cve.org (CVE-2025-7912)

nvd.nist.gov (CVE-2025-7912)

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