CVE-2025-63080

Authenticated RCE in KAON PG5298

HIGH

8.5

CVSS Score

Published: August 24, 2026 at 11:11 AM UTC

Updated: October 7, 2026 at 09:10 AM UTC

2 products affected across 1 vendorPG5298APG5298B

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Severity

HIGH8.5

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

PG5298A · Kaon

60%

v < 3.0.82

Affected range stops below 3.0.82, so it looks safe — our inference, not a vendor statement

PG5298B · Kaon

60%

v < 4.0.82

Affected range stops below 4.0.82, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Third Party Advisory

Source: cverecord

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.5HIGHCERT-PL

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-863

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