CVE-2021-42912

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2021-42912
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-12-16 17:15:07 UTC
Updated2026-07-09 01:17:07 UTC
DescriptionFiberHome ONU GPON AN5506-04-F RP2617 is affected by an OS command injection vulnerability. This vulnerability allows the attacker, once logged in, to send commands to the operating system as the root user via the ping diagnostic tool, bypassing the IP address field, and concatenating OS commands with a semicolon.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.108650000 probability, percentile 0.953390000 (date 2026-07-12)

Problem Types: CWE-78 | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary8.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary9AV:N/AC:L/Au:S/C:C/I:C/A:C

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
Single
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:L/Au:S/C:C/I:C/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fiberhome Aan5506-04-g2g Firmware rp2560 All All All
Hardware Fiberhome An5506-01-a - All All All
Operating System Fiberhome An5506-01-a Firmware rp0509 All All All
Hardware Fiberhome An5506-01-b - All All All
Operating System Fiberhome An5506-01-b Firmware rp2610 All All All
Hardware Fiberhome An5506-02-b - All All All
Operating System Fiberhome An5506-02-b Firmware rp2520 All All All
Operating System Fiberhome An5506-02-b Firmware rp2521 All All All
Operating System Fiberhome An5506-02-b Firmware rp2603 All All All
Hardware Fiberhome An5506-04-b - All All All
Operating System Fiberhome An5506-04-b Firmware rp2510 All All All
Hardware Fiberhome An5506-04-f - All All All
Operating System Fiberhome An5506-04-f Firmware rp2617 All All All
Hardware Fiberhome An5506-04-g2g - All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Fiberhome AN5506 OS Command Injection (CVE-2021-42912) | by Windsor Moreira | Dec, 2021 | Medium [email protected] medium.com
Fiberhome AN5506 OS Command Injection (CVE-2021-42912) | by Windsor Moreira | Medium af854a3a-2127-422b-91ae-364da2661108 medium.com
fiberhome.com MITRE fiberhome.com
Your flat share, apartment, housing search specialists for landlords and tenants: onu.net MITRE onu.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report