CVE-2025-65288

A buffer overflow in the Mercury MR816v2 (081C3114 4.8.7 Build 110427 Rel 36550n) occurs when the device accepts and stores excessively long hostnames from LAN hosts without proper length validation. The affected code performs unchecked copies/concatenations into fixed-size buffers. A crafted long hostname can overflow the buffer, cause a crash (DoS) and potentially enabling remote code execution.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://damiri.fr/en/cve/CVE-2025-65288	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:mercurycom:mr816_firmware:081c3114_4.8.7:build_110427:*:*:*:*:*:*

cpe:2.3:h:mercurycom:mr816:2.0:*:*:*:*:*:*:*

History

18 Oct 2026, 15:10

Type	Values Removed	Values Added
Summary		(es) Un desbordamiento de búfer en el Mercury MR816v2 (081C3114 4.8.7 Build 110427 Rel 36550n) ocurre cuando el dispositivo acepta y almacena nombres de host excesivamente largos de hosts de LAN sin una validación de longitud adecuada. El código afectado realiza copias/concatenaciones sin verificar en búferes de tamaño fijo. Un nombre de host largo manipulado puede desbordar el búfer, causar un fallo (DoS) y potencialmente permitir la ejecución remota de código.

Information

Published : 2025-12-09 17:15

Updated : 2026-10-18 15:10

NVD link : CVE-2025-65288

Mitre link : CVE-2025-65288

CVE.ORG link : CVE-2025-65288

JSON object : View

Products Affected

mercurycom

mr816
mr816_firmware

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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