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CVE-2025-7524VulnerabilityPublished Updated

CVE-2025-7524: TOTOLINK T6 · Command Injection

Affects TOTOLINK T6Source CVE Database V5

0

Not known to be exploited · CVSS 5.3 Medium.

Data as of 26 Oct 2026, 07:57 UTC

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
2.8% chance of exploitation in 30 days – higher than 86% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 Jul 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

What to do

AI-suggested

1. Immediate mitigation should include isolating affected TOTOLINK T6 routers from critical network segments to limit potential lateral movement. 2. Network administrators should monitor network traffic for unusual patterns or unexpected command execution attempts targeting the /cgi-bin/cstecgi.cgi endpoint. 3. Implement strict firewall rules to restrict remote access to router management interfaces, ideally limiting access to trusted IP addresses only. 4. Disable remote management features if not required. 5. Regularly audit and inventory network devices to identify any TOTOLINK T6 routers running the vulnerable firmware version. 6. 7. Employ network intrusion detection/prevention systems (IDS/IPS) with signatures tuned to detect exploitation attempts targeting this vulnerability. 8. Educate users about the risks of using outdated firmware and the importance of applying updates promptly once available.

Description

A vulnerability was found in TOTOLINK T6 4.1.5cu.748_B20211015. It has been classified as critical. This affects 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 command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

References

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