CVE-2025-28020

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-28020
TOTOLINK A800R V4.1.2cu.5137_B20200730 was found to contain a buffer overflow vulnerability in downloadFile.cgi through the v25 parameter.

7.3 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References
Link Resource
https://locrian-lightning-dc7.notion.site/BufferOverflow3-1948e5e2b1a280c28ef5c6e54b49324d?pvs=73 Exploit Third Party Advisory
https://locrian-lightning-dc7.notion.site/CVE-2025-28020-BufferOverflow3-1948e5e2b1a280c28ef5c6e54b49324d Exploit Third Party Advisory
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:totolink:a800r_firmware:4.1.2cu.5137_b20200730:*:*:*:*:*:*:*
cpe:2.3:h:totolink:a800r:-:*:*:*:*:*:*:*
History

06 May 2025, 20:35

Type Values Removed Values Added
First Time Totolink a800r
Totolink
Totolink a800r Firmware
References () https://locrian-lightning-dc7.notion.site/BufferOverflow3-1948e5e2b1a280c28ef5c6e54b49324d?pvs=73 - () https://locrian-lightning-dc7.notion.site/BufferOverflow3-1948e5e2b1a280c28ef5c6e54b49324d?pvs=73 - Exploit, Third Party Advisory
References () https://locrian-lightning-dc7.notion.site/CVE-2025-28020-BufferOverflow3-1948e5e2b1a280c28ef5c6e54b49324d - () https://locrian-lightning-dc7.notion.site/CVE-2025-28020-BufferOverflow3-1948e5e2b1a280c28ef5c6e54b49324d - Exploit, Third Party Advisory
CPE cpe:2.3:o:totolink:a800r_firmware:4.1.2cu.5137_b20200730:*:*:*:*:*:*:*
cpe:2.3:h:totolink:a800r:-:*:*:*:*:*:*:*

24 Apr 2025, 16:15

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.3
CWE CWE-120
Summary
  • (es) Se descubrió que TOTOLINK A800R V4.1.2cu.5137_B20200730 contenía una vulnerabilidad de desbordamiento de búfer en downloadFile.cgi a través del parámetro v25.

23 Apr 2025, 17:16

Type Values Removed Values Added
New CVE
Information

Published : 2025-04-23 17:16

Updated : 2025-05-06 20:35

NVD link : CVE-2025-28020

Mitre link : CVE-2025-28020

CVE.ORG link : CVE-2025-28020

JSON object : View

Products Affected

totolink

  • a800r
  • a800r_firmware
CWE
CWE-120

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