A vulnerability has been found in TOTOLINK N600R 4.3.0cu.7866_B20220506. (CVE-2026-82555)
Description
A low-severity vulnerability exists in TOTOLINK N600R version 4.3.0cu.7866_B20220506 affecting the loginAuth function in the Authentication Handler component. The issue involves insufficiently random values, which can be exploited remotely but requires high complexity and no user interaction. Exploit code has been publicly disclosed, but no known active exploitation is reported.
CVSS v3.1
Score 3.7low
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-82555 describes a vulnerability in the loginAuth function of the /web_cste/cgi-bin/cstecgi.cgi file in TOTOLINK N600R firmware version 4.3.0cu.7866_B20220506. The flaw results from insufficiently random values in the authentication process, potentially allowing a remote attacker to exploit it. The attack complexity is high, and no privileges or user interaction are required. The vulnerability has a CVSS 3.1 base score of 3.7 (low severity). Public exploit code exists, but no active exploitation is known.
Potential Impact
The vulnerability could allow a remote attacker to exploit insufficient randomness in the authentication handler, potentially affecting confidentiality with low impact. There is no impact on integrity or availability. Due to high attack complexity and lack of known active exploitation, the practical risk is limited.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch information is provided. Until a patch is available, monitor vendor communications for updates.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-ph8r-m79f-q97v
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-82555"]
- Database Specific Severity
- LOW
- Cvss Version
- 3.1
Threat ID: 6a95a106acd9273b4947eae1
Added to database: 08/31/2026, 15:43:02 UTC
Last enriched: 09/09/2026, 10:23:03 UTC
Last updated: 10/14/2026, 18:48:24 UTC
Views: 89
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