VulnerabilityModified
CVE-2021-27170
By default, there are no firewall rules for IPv6 connectivity, exposing the internal management interfaces to the Internet.
CRITICAL 9.8EPSS 15.9%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 15.9%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
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 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 15.95% probability · 97th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-922
- Affected
- fiberhome/hg6245d firmware
- Source
- cve@mitre.org
References
- https://pierrekim.github.io/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.html#insecure-ipv6Exploit, Third Party Advisory
- https://pierrekim.github.io/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.html#insecure-ipv6Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.