CVE-2021-20662
Missing authentication for critical function in SolarView Compact SV-CPT-MC310 prior to Ver.6.5...
Missing authentication for critical function in SolarView Compact SV-CPT-MC310 prior to Ver.6.5 allows an attacker to alter the setting information without the access privileges via unspecified vectors.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Missing authentication for critical function in SolarView Compact SV-CPT-MC310 prior to Ver.6.5 allows an attacker to alter the setting information without the access privileges via unspecified vectors.
- Record
CVE-2021-20662- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:P/A:N - Weakness
- CWE-306
- Updated
- 2026-11-02
CVE List No score
Missing authentication for critical function in SolarView Compact SV-CPT-MC310 prior to Ver.6.5 allows an attacker to alter the setting information without the access privileges via unspecified vectors.
- Record
CVE-2021-20662- Updated
- 2026-11-02
EUVDEUVD-2021-8080 No score
Missing authentication for critical function in SolarView Compact SV-CPT-MC310 prior to Ver.6.5 allows an attacker to alter the setting information without the access privileges via unspecified vectors.
- Record
EUVD-2021-8080- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-954j-r82g-vr2p No score
Missing authentication for critical function in SolarView Compact SV-CPT-MC310 prior to Ver.6.5...
Missing authentication for critical function in SolarView Compact SV-CPT-MC310 prior to Ver.6.5 allows an attacker to alter the setting information without the access privileges via unspecified vectors.
- Record
GHSA-954j-r82g-vr2p- Weakness
- CWE-306
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-20662 is a high vulnerability (CVSS 7.5) in Contec Co., Ltd. Solarview Compact, published February 24, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.09%, the 81st percentile. No source names a fixed version.
References
contec.com/jp/api/downloadlogger?download=https://www.contec.com/jp/-/media/contec/jp/support/security-info/contec_security_solarview_210216.pdf
jvn.jp/en/jp/JVN37417423/index.html
nvd.nist.gov/vuln/detail/CVE-2021-20662
github.com/advisories/GHSA-954j-r82g-vr2p