🛡️ CVE-2025-65289
🟡 CVSS 6.1 — Medium ⚠️ Exploit Public CWE-79 NVD
6.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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 hostname. The injected script is stored and later executed in the context of an administrator's browser (for example after DHCP release/renew triggers the interface to display the stored hostname). Because the management interface uses weak/basic authentication and does not properly protect or isolate session material, the XSS can be used to exfiltrate the admin session and perform administrative actions.

Details

Severity MEDIUM
CVSS Score 6.1
CVSS Vector CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
CWE CWE-79
Public Exploit ⚠️ Yes
Source NVD
Published 2025-12-09
Updated 2026-06-02
Modified 2025-12-12
Fix URL N/A

Affected Packages

Software From version Fixed in
mr816-firmware — —

References

Exploit, Third Party Advisory https://damiri.fr/en/cve/CVE-2025-65289

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