CVE-2025-6734

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-6734
A vulnerability was found in UTT HiPER 840G up to 3.1.1-190328. It has been rated as critical. This issue affects the function sub_484E40 of the file /goform/formP2PLimitConfig of the component API. The manipulation of the argument except leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

8.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.0 /10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:S/C:C/I:C/A:C

Exploitability : 8.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References
Link Resource
https://github.com/d2pq/cve/blob/main/616/3.md Exploit Third Party Advisory
https://github.com/d2pq/cve/blob/main/616/3.md#poc Exploit Third Party Advisory
https://vuldb.com/?ctiid.314009 Permissions Required VDB Entry
https://vuldb.com/?id.314009 Third Party Advisory VDB Entry
https://vuldb.com/?submit.597679 Third Party Advisory VDB Entry
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:utt:840g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:utt:840g:3.0:*:*:*:*:*:*:*
History

08 Jan 2026, 19:44

Type Values Removed Values Added
First Time Utt 840g Firmware
Utt
Utt 840g
CPE cpe:2.3:o:utt:840g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:utt:840g:3.0:*:*:*:*:*:*:*
References () https://github.com/d2pq/cve/blob/main/616/3.md - () https://github.com/d2pq/cve/blob/main/616/3.md - Exploit, Third Party Advisory
References () https://github.com/d2pq/cve/blob/main/616/3.md#poc - () https://github.com/d2pq/cve/blob/main/616/3.md#poc - Exploit, Third Party Advisory
References () https://vuldb.com/?ctiid.314009 - () https://vuldb.com/?ctiid.314009 - Permissions Required, VDB Entry
References () https://vuldb.com/?id.314009 - () https://vuldb.com/?id.314009 - Third Party Advisory, VDB Entry
References () https://vuldb.com/?submit.597679 - () https://vuldb.com/?submit.597679 - Third Party Advisory, VDB Entry

30 Jun 2025, 18:38

Type Values Removed Values Added
Summary
  • (es) Se encontró una vulnerabilidad en UTT HiPER 840G hasta la versión 3.1.1-190328. Se ha clasificado como crítica. Este problema afecta a la función sub_484E40 del archivo /goform/formP2PLimitConfig de la API del componente. La manipulación del argumento "except" provoca un desbordamiento del búfer. El ataque puede ejecutarse en remoto. Se ha hecho público el exploit y puede que sea utilizado. Se contactó al proveedor con antelación sobre esta divulgación, pero no respondió.

26 Jun 2025, 23:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-06-26 23:15

Updated : 2026-01-08 19:44

NVD link : CVE-2025-6734

Mitre link : CVE-2025-6734

CVE.ORG link : CVE-2025-6734

JSON object : View

Products Affected

utt

  • 840g
  • 840g_firmware
CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-120

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