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CVE-2020-29375

25
FAUCET Score

CVE-2020-29375 describes a critical hardcoded password vulnerability (CWE-798) affecting multiple V-SOL V1600D, V1600D4L, V1600D-MINI, V1600G1, and V1600G2 OLT devices. A low-privileged attacker can exploit this flaw by using a known hardcoded password to create an administrative user account. Rated with a CVSS score of 8.8 (HIGH), this vulnerability allows for network-based attacks with low complexity and no user interaction, leading to complete compromise of confidentiality, integrity, and availability. The FAUCET Risk Score is 68/100, indicating significant risk. While there is no evidence of active exploitation (KEV: No) and no public exploit code (Metasploit, Nuclei, ExploitDB: None), the presence of a hardcoded password makes it easily exploitable. Community discussion and media coverage are minimal, suggesting low public awareness despite the high severity.

Impacted Technologies

VendorProductVersion(s)CPE
2.03.57CPE matchmatch criteria
cpe:2.3:o:vsolcn:v1600d_firmware:2.03.57:*:*:*:*:*:*:*
2.03.69CPE matchmatch criteria
cpe:2.3:o:vsolcn:v1600d_firmware:2.03.69:*:*:*:*:*:*:*
1.01.49CPE matchmatch criteria
cpe:2.3:o:vsolcn:v1600d4l_firmware:1.01.49:*:*:*:*:*:*:*
1.01.48CPE matchmatch criteria
cpe:2.3:o:vsolcn:v1600d-mini_firmware:1.01.48:*:*:*:*:*:*:*
1.9.7CPE matchmatch criteria
cpe:2.3:o:vsolcn:v1600g1_firmware:1.9.7:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
52.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0080 is in the 47th percentile among its peer group of 17,822 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

seclists.org / fulldisclosure/2020/Jul/14
Mailing ListThird Party Advisory