CVE-2020-10881

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 9.3% 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-121

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 handling of DNS responses. A crafted DNS message can trigger an overflow of a fixed-length, stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the root user. Was ZDI-CAN-9660.

Affected products

TP-Link AC1750: 190726

References

https://www.zerodayinitiative.com/advisories/ZDI-20-333/
https://www.zerodayinitiative.com/advisories/ZDI-20-333/

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