CVE-2025-65288

Dec. 12, 2025, 2:32 p.m.

6.5
Medium

Description

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.

Product(s) Impacted

Vendor Product Versions
Mercurycom
  • Mr816 Firmware
  • Mr816
  • 081c3114_4.8.7
  • 2.0

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
o mercurycom mr816_firmware 081c3114_4.8.7 build_110427 / / / / / /
h mercurycom mr816 2.0 / / / / / / /

References

https://damiri.fr/en/cve/CVE-2025-65288

Tags

cve@mitre.org
CWE-120
2025-12-09
CVE-2025-65288

CVSS Score

6.5 / 10

CVSS Data - 3.1

  • Attack Vector: ADJACENT_NETWORK
  • Attack Complexity: LOW
  • Privileges Required: NONE
  • Scope: UNCHANGED
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: HIGH

    • CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

    View Vector String

Timeline

Published: Dec. 9, 2025, 5:15 p.m.
Last Modified: Dec. 12, 2025, 2:32 p.m.

Status : Analyzed

CVE has had analysis completed and all data associations made.

More info

Source

cve@mitre.org

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.