What is CVE-2025-65289?

CVE-2025-65289 is a medium-severity vulnerability in Mercurycom Mr816, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-12-09.

How severe is CVE-2025-65289?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Mercurycom Mr816

CVE-2025-65289

A stored Cross site scripting (XSS) vulnerability in the Mercury MR816v2 (081C3114 4.8.7 Build 110427 Rel 36550n) router allows a remote attacker on the LAN to inject JavaScript into the router's management UI by submitting a malicious hos…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (21.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.

Affected products

Mercurycom Mr816 — versions 2.0
Mercurycom Mr816_firmware — versions 081c3114_4.8.7
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-65289?: CVE-2025-65289 is a medium-severity vulnerability in Mercurycom Mr816, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-12-09.
How severe is CVE-2025-65289?: Medium severity. CVSS v3 base score is 6.1 out of 10.