CVE-2021-20730
MEDIUMCVSS 4.3/10EPSS 0.37%
Last modified
CVE-2021-20730 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. Improper access control vulnerability in WSR-1166DHP3 firmware Ver.1.16 and prior and WSR-1166DHP4 firmware Ver.1.02 and prior allows an attacker to obtain configuration information via unspecified vectors.. EPSS estimates a 0.37% chance of exploitation in the next 30 days.
Description
Improper access control vulnerability in WSR-1166DHP3 firmware Ver.1.16 and prior and WSR-1166DHP4 firmware Ver.1.02 and prior allows an attacker to obtain configuration information via unspecified vectors.
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Buffalo | Wsr-1166dhp4 Firmware | <= 1.02 |
| Buffalo | Wsr-1166dhp3 Firmware | <= 1.16 |
References
- https://jvn.jp/en/vu/JVNVU92862829/index.htmlThird Party Advisory
- https://www.buffalo.jp/news/detail/20210531-01.htmlVendor Advisory
- https://jvn.jp/en/vu/JVNVU92862829/index.htmlThird Party Advisory
- https://www.buffalo.jp/news/detail/20210531-01.htmlVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-20730?
Improper access control vulnerability in WSR-1166DHP3 firmware Ver.1.16 and prior and WSR-1166DHP4 firmware Ver.1.02 and prior allows an attacker to obtain configuration information via unspecified vectors.
How severe is CVE-2021-20730?
CVE-2021-20730 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.37% probability of exploitation in the next 30 days.
How do I fix CVE-2021-20730?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-20730?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST