CVE-2021-27162Hg6245d Firmware Hardcoded Credentials
An issue was discovered on FiberHome HG6245D devices through RP2613.
Published Feb 10, 2021 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2021-27162 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Hg6245d Firmware (Fiberhome).
- It is exploited in the wild, listed in Industry KEV feed since Apr 29, 2025. No public exploit code is known.
- EPSS estimates a 28% probability of exploitation in the next 30 days.
- Fixed versions are available, including Hg6245d Firmware <=rp2613, Hg6245d Firmware rp2613.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Scores
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
28%
Higher than 98.0% of all scored CVEs
Exploit maturity
Exploited (KEV)
ATLAS score
48/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Apr 29, 2025
1539 days after publication
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Exploited (KEV)
Public exploit code
0
Proof-of-concept links
In-the-wild evidence
2
Reports of active use
Description
An issue was discovered on FiberHome HG6245D devices through RP2613. The web daemon contains the hardcoded user / tattoo@home credentials for an ISP.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Apr 29, 2025 | n/a | Not reported |
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Hg6245d FirmwareFiberhome | See advisory | rp2613 |
Patched Releases
Hg6245d Firmware
<=rp2613
Timeline
Publicly disclosed
Feb 10, 2021
Last updated
Nov 21, 2024
Added to Industry KEV feed
Apr 29, 2025
Weakness Type
- CWE-798 Use of Hard-coded Credentials
FAQ
Common Questions.
An issue was discovered on FiberHome HG6245D devices through RP2613.
Affected: Hg6245d Firmware (Fiberhome). The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Apr 29, 2025.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Hg6245d Firmware <=rp2613, Hg6245d Firmware rp2613.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2021-27162 On Your Attack Surface?
Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.
Request A Demo