CVE-2025-7912

TOTOLINK T6 MQTT Service recvSlaveUpgstatus buffer overflow

HIGH
8.8
CVSS Score
Published: July 20, 2025 at 11:02 PM UTC
Updated: June 17, 2026 at 10:05 AM UTC
2 products affected across 1 vendorT6 FirmwareTOTOLINK T6

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Severity
HIGH8.8
Exploit prediction
EPSS 1%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

4.1.5cu.748_B202110154.1.5cu.748_b20211015
totolink-t6 (same device)
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHVulDB
Vector?

Quick Info

StatusANALYZED
CWE
CWE-119CWE-120

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