CVE-2021-27246
moderate-risk
Published 2021-04-14
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.
Do I need to act?
~
9.4% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.0/10
High
ADJACENT_NETWORK
/ LOW complexity
Affected Products (1)
Affected Vendors
References (2)
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-215/
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-215/
41
/ 100
moderate-risk
Severity
25/34 · High
Exploitability
11/34 · Low
Exposure
5/34 · Minimal