What’s Vulnerable › Vulnerabilities

CVE-2026-82555: TOTOLINK N600R Authentication cstecgi.cgi loginAuth random values

• Severity: low (CVSS 3.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-30 · updated 2026-08-31
• Weakness: CWE-310

Description

A vulnerability has been found in TOTOLINK N600R 4.3.0cu.7866_B20220506. This vulnerability affects the function loginAuth of the file /web_cste/cgi-bin/cstecgi.cgi of the component Authentication Handler. Such manipulation leads to insufficiently random values. It is possible to launch the attack remotely. This attack is characterized by high complexity. It is stated that the exploitability is difficult. The exploit has been disclosed to the public and may be used.

Affected products

• TOTOLINK N600R: 4.3.0cu.7866_B20220506

References

• https://github.com/b1uerry/cves/blob/main/TOTOLINK/N600R/TOTOLINK_N600R_predictable-token/poc.py
• https://github.com/b1uerry/cves/tree/main/TOTOLINK/N600R/TOTOLINK_N600R_predictable-token
• https://vuldb.com/cve/CVE-2026-82555
• https://vuldb.com/submit/891698
• https://vuldb.com/vuln/397071
• https://vuldb.com/vuln/397071/cti
• https://www.totolink.net/

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