TP-Link Archer VX1800v HTTP Authentication injection

Summaryinfo

A vulnerability marked as problematic has been reported in TP-Link Archer VX1800v. This vulnerability affects unknown code of the component HTTP Authentication. This manipulation causes injection. This vulnerability appears as CVE-2026-15429. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in TP-Link Archer VX1800v (the affected version is unknown). It has been declared as problematic. Affected by this vulnerability is an unknown code of the component HTTP Authentication. The manipulation with an unknown input leads to a injection vulnerability. The CWE definition for the vulnerability is CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A privilege escalation vulnerability exists in the HTTP authentication component in Archer VX1800v v1. Improper handling of user-controlled input may allow newline characters to be injected into internally constructed configuration data.  An authenticated user with sufficient privileges may be able to modify account settings and gain elevated administrative privileges.

It is possible to read the advisory at tp-link.com. This vulnerability is known as CVE-2026-15429 since 07/10/2026. The exploitation appears to be easy. The attack can be launched remotely. Additional levels of successful authentication are necessary for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/14/2026). The attack technique deployed by this issue is T1055 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• TP-Link

Name

• Archer VX1800v

License

• commercial

Website

• Vendor: https://www.tp-link.com/

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