Mercury MR816v2 081C3114 4.8.7 Build 110427 Rel 36550n Management Interface cross site scripting

Summaryinfo

A vulnerability described as problematic has been identified in Mercury MR816v2 081C3114 4.8.7 Build 110427 Rel 36550n. This affects an unknown part of the component Management Interface. Such manipulation leads to cross site scripting. This vulnerability is referenced as CVE-2025-65289. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in Mercury MR816v2 081C3114 4.8.7 Build 110427 Rel 36550n and classified as problematic. Affected by this issue is an unknown code block of the component Management Interface. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

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.

The advisory is shared for download at damiri.fr. This vulnerability is handled as CVE-2025-65289 since 11/18/2025. The exploitation is known to be easy. The attack may be launched remotely. The exploitation requires an enhanced level of successful authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• Mercury

Name

• MR816v2

Version

• 081C3114 4.8.7 Build 110427 Rel 36550n

CPE 2.3info

• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion