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CVE-2026-15429

Privilege Escalation via Improper Input Sanitization in TP-Link Archer VX1800v

HIGH
8.8
CVSS Score
Published: July 14, 2026 at 05:04 PM UTC
Updated: October 24, 2026 at 09:10 PM UTC
2 products affected across 1 vendorArcher VX1800V FirmwareLink Archer VX1800V· also runs on 1 platform

Using Archer VX1800v v1 by TP-Link Systems Inc.?

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Severity
HIGH8.8
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Archer VX1800V Firmware· TP-Link
95%
v < 0.16.02.0.0
Affected range stops below 0.16.0, so it looks safe — our inference, not a vendor statement
tp-link-archer-vx1800v (same device)
Link Archer VX1800V· TP-Link
90%
0 ≤ v < 0.16.0 2.0.0 v6092.0 Build 260521 RC.7927n
Affected range stops below 0.16.0 2.0.0 v6092.0 Build 260521 RC.7927n, so it looks safe — our inference, not a vendor statement

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

PatchProduct
Source: cverecord
https://www.tp-link.com/en/support/download/archer-vx1800v/#Firmware
Vendor Advisory
Source: cverecord
https://www.tp-link.com/us/support/faq/5189/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-93

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