CVE-2023-27333

low-risk
Published 2024-05-03

TP-Link Archer AX21 tmpServer Command 0x422 Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Archer AX21 routers. Authentication is required to exploit this vulnerability. The specific flaw exists within the handling of command 0x422 provided to the tmpServer service. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. . Was ZDI-CAN-19905.

Do I need to act?

-
0.15% chance of exploitation
EPSS score — low 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
6
CVSS 6.8/10 Medium
ADJACENT_NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Tp-Link

References (2)

Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-23-244/
Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-23-244/
28
/ 100
low-risk
Severity 22/34 · High
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal