Authentication Flaw in KAON Routers Allows Unauthorized Command Execution
CVE-2025-63080

8.5HIGH

Key Information:

Vendor

Kaon

Status
Pg5298a
Pg5298b
Vendor
CVE Published:
24 August 2026

What is CVE-2025-63080?

The firmware in KAON PG5298A and PG5298B routers has a security flaw that allows an authenticated user to send crafted JSON-RPC requests to perform unauthorized operations. This includes the ability to read system files or execute commands that are not permitted through the graphical user interface (GUI). Users are advised to upgrade to firmware version 3.0.82 for PG5298A and version 4.0.82 for PG5298B to mitigate this vulnerability.

Affected Version(s)

PG5298A 0 < 3.0.82

PG5298B 0 < 4.0.82

References

https://cert.pl/en/posts/2026/08/CVE-2025-63080/
third-party-advisory

CVSS V4

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Oskar Rudziński
.