CVE-2021-27170
mediumpriority · attend · 45EPSS 0.159 · 97 %ileEUUSEPSS · scored 2026-10-27
An issue was discovered on FiberHome HG6245D devices through RP2613. By default, there are no firewall rules for IPv6 connectivity, exposing the internal management interfaces to the Internet.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 5–9.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (5)
External citations — patches, advisories, analysis.
- https://nvd.nist.gov/vuln/detail/CVE-2021-27170cnnvd
- https://pierrekim.github.io/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.htmlPatchcnnvd
- https://pierrekim.github.io/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.html#insecure-ipv6cnnvd
- https://pierrekim.github.io/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.html#insecure-ipv6enisa_euvd
- https://pierrekim.github.io/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.html#insecure-ipv6ExploitThird Party Advisorynvd
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