Remote Code Execution Vulnerability in TP-Link Archer A7 Firmware
CVE-2020-10881

9.8CRITICAL

Key Information:

Vendor

Tp-link
Status
Archer A7
Vendor
CVE Published:
25 March 2020

What is CVE-2020-10881?

A vulnerability in TP-Link Archer A7 routers enables remote attackers to execute arbitrary code by exploiting the handling of DNS responses. This can occur without any authentication, allowing potential intruders to craft a malicious DNS message that causes a buffer overflow in a fixed-length, stack-based buffer. By leveraging this vulnerability, an attacker may execute code with root user privileges, posing significant security risks to users of affected firmware versions.

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Affected Version(s)

Archer A7 Firmware Ver: 190726

References

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

48% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Pedro Ribeiro and Radek Domanski of Team Flashback
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