CVE-2021-27156 in the critical feed json
An issue was discovered on FiberHome HG6245D devices through RP2613.
published 2021-02-10 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-13923
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 15.2%
- EPSS 15.2% chance of exploitation in 30 days, percentile 96%
- public exploits
- 0
- none known
Summary
An issue was discovered on FiberHome HG6245D devices through RP2613. The web daemon contains credentials for an ISP that equal the last part of the MAC address of the br0 interface.
Exploit prediction
15.21% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- pierrekim.github.io https://pierrekim.github.io/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.html#httpd-hardcoded-credentials referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-798 Use of Hard-coded Credentials
References
-
pierrekim.github.io
/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.html#httpd-hardcoded-credentials
exploit, third-party-advisory
Sources
- CVE List CVE-2021-27156
- NVD CVE-2021-27156
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