CVE Vulnerability

CVE-2021-27246

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Archer A7 AC1750 1.0.15 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of MAC addresses by the tdpServer endpoint. A crafted TCP message can write stack pointers to the stack. An attacker can leverage this vulnerability to execute code in the context of the root user. Was ZDI-CAN-12306.

7.9 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 5.5 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.1 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://www.zerodayinitiative.com/advisories/ZDI-21-215/ Third Party Advisory VDB Entry
Configurations

Configuration 1
Information

Published : 2021-04-14 04:15

Updated : 2021-04-22 05:45

NVD link : CVE-2021-27246

Mitre link : CVE-2021-27246

Products Affected

Ac1750 Firmware

Tp-link

CWE
CWE-121