CVE-2020-10886

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-03-25 · updated 2026-06-17
Weakness: CWE-78

Description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of TP-Link Archer A7 Firmware Ver: 190726 AC1750 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the tmpServer service, which listens on TCP port 20002. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-9662.

Affected products

TP-Link AC1750: 190726

References

https://www.zerodayinitiative.com/advisories/ZDI-20-339/
https://www.zerodayinitiative.com/advisories/ZDI-20-339/

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