Input Handling Flaw in ONT/Beacon Device from Nokia
CVE-2025-9974

8HIGH

Key Information:

Vendor

Nokia

Status
Vendor
CVE Published:
2 February 2026

Badges

๐Ÿ‘พ Exploit Exists๐ŸŸก Public PoC

What is CVE-2025-9974?

The ONT/Beacon device by Nokia features a critical input handling flaw in its unified WEBUI application. This vulnerability allows low-privileged authenticated users to exploit insufficient validation of user-supplied data, enabling them to execute arbitrary commands on the device's operating system. Such exploitation could compromise the device's confidentiality, integrity, and availability, posing a serious security threat to users reliant on the ONT/Beacon system.

Affected Version(s)

Nokia ONT Releases prior to BBDR2503

Nokia ONT Releases prior to BBDR2503

Nokia ONT BBDR2503 and later releases

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

References

CVSS V3.1

Score:
8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • ๐ŸŸก

    Public PoC available

  • ๐Ÿ‘พ

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.