Firmware in KAON PG5298A and PG5298B routers allow an authenticated user to send crafted JSON-RPC requests and perform operations not possible via GUI, e.g. system file read or command execution.   
This vulnerability has been fixed in firmware version: 3.0.82 for PG5298A and 4.0.82 for PG5298B.

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
KAON PG5298A unaffected
Version Status Constraints
0 affected < 3.0.82
KAON PG5298B unaffected
Version Status Constraints
0 affected < 4.0.82

No data.

No data.

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Project Subscriptions

Vendors Products
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Pg5298a Subscribe
Pg5298b Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://cert.pl/en/posts/2026/08/CVE-2025-63080/ cve-icon cve-icon
History

Mon, 24 Aug 2026 11:30:00 +0000

Type Values Removed Values Added
Description Firmware in KAON PG5298A and PG5298B routers allow an authenticated user to send crafted JSON-RPC requests and perform operations not possible via GUI, e.g. system file read or command execution.    This vulnerability has been fixed in firmware version: 3.0.82 for PG5298A and 4.0.82 for PG5298B.
Title Authenticated RCE in KAON PG5298
First Time appeared Kaon
Kaon pg5298a
Kaon pg5298b
Weaknesses CWE-863
CPEs cpe:2.3:a:kaon:pg5298a:*:*:*:*:*:*:*:*
cpe:2.3:a:kaon:pg5298b:*:*:*:*:*:*:*:*
Vendors & Products Kaon
Kaon pg5298a
Kaon pg5298b
References
Metrics cvssV4_0

{'score': 8.5, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: CERT-PL

Published:

Updated: 2026-08-24T11:11:24.083Z

Reserved: 2025-10-24T15:51:09.965Z

Link: CVE-2025-63080

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-24T12:16:47.937

Modified: 2026-08-24T12:16:47.937

Link: CVE-2025-63080

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-24T12:30:16Z

Weaknesses