CVE-2020-29377

9.8 criticalEPSS 1.3%

Critical (9.8) in vsolcn v1600d firmware. EPSS 1.3% chance of exploitation in the next 30 days.

An issue was discovered on V-SOL V1600D V2.03.69 OLT devices. The string K0LTdi@gnos312$ is compared to the password provided by the the remote attacker. If it matches, access is provided.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.3% chance of exploitation in the next 30 days; higher than 70% of CVEs (scores of 2026-10-31)
CWE: CWE-798
Published: 2020-11-29
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

vsolcn:v1600d_firmware

References

https://seclists.org/fulldisclosure/2020/Jul/14
https://seclists.org/fulldisclosure/2020/Jul/14

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