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CVE-2020-10887
CRITICAL
This vulnerability allows a firewall bypass 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 IPv6 connections. The issue results from the lack of proper filtering of IPv6 SSH connections. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-9663.
Published: Mar 25, 2020
Modified: Jun 17, 2026
CWE-693
CVSS Metrics
CVSSv3
Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products (1)
| Vendor | Product | Version |
|---|---|---|
| tp-link | ac1750_firmware | 190726 |
GitHub Security Advisory GHSA-4mxh-xfwq-hpgj
This vulnerability allows a firewall bypass on affected installations of TP-Link Archer A7...
References (2)
- https://www.zerodayinitiative.com/advisories/ZDI-20-338/ Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-20-338/ Third Party Advisory, VDB Entry
Risk Scores
CVSS Score
9.8 / 10
EPSS Score
4.21%
Top 10% most likely to be exploited
Threat Score
40.5 / 100
Data Sources
NVD
EPSS
GitHub