CVE-2025-7952
Published: 22 July 2025
Summary
CVE-2025-7952 is a medium-severity Injection (CWE-74) vulnerability in Totolink T6 Firmware. Its CVSS base score is 6.3 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 13.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Developer assessments and testing (including injection-focused techniques) identify improper neutralization of special elements, and the verifiable flaw remediation corrects them pre-deployment.
Identifies indicators of injection attacks (command, SQL, LDAP, etc.) via anomaly and attack monitoring.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Remote command injection in public-facing MQTT handler directly enables T1190 for initial access and T1059.004 for Unix shell command execution on the router firmware.
NVD Description
A vulnerability classified as critical was found in TOTOLINK T6 4.1.5cu.748. This vulnerability affects the function ckeckKeepAlive of the file wireless.so of the component MQTT Packet Handler. The manipulation leads to command injection. The attack can be initiated remotely. The…
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exploit has been disclosed to the public and may be used.
Deeper analysisAI
CVE-2025-7952 is a command injection vulnerability classified as critical in the TOTOLINK T6 router running firmware version 4.1.5cu.748. The issue resides in the ckeckKeepAlive function within the wireless.so file, part of the MQTT Packet Handler component. Manipulation of this function enables command injection, as documented under CWEs-74 and CWE-77.
The vulnerability is remotely exploitable over the network with low attack complexity, requiring low privileges (PR:L) but no user interaction. Successful exploitation grants limited impacts: low confidentiality, integrity, and availability effects, per its CVSS v3.1 base score of 6.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L).
Advisories and references, including VulDB entries and a GitHub repository, disclose a public proof-of-concept exploit, indicating it may be actively used by attackers. No specific patches or mitigations are detailed in the available information.
Details
- CWE(s)