CVE-2026-18167

Stack-based buffer overflow in TP-Link Archer AX55 v4

HIGH
7.7
CVSS Score
Published: September 3, 2026 at 10:24 PM UTC
Updated: September 8, 2026 at 07:29 PM UTC
1 product affected across 1 vendorArcher AX55

Using Archer AX55 v4 by TP-Link Systems Inc.?

Get instant alerts when new vulnerabilities affect Archer AX55 v4 - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.7
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

A stack-based buffer overflow vulnerability exists in the EasyMesh module of TP-Link Archer AX55 v4. When Mesh mode is enabled, a LAN attacker may submit crafted input that causes the easymesh daemon to crash and may potentially achieve remote code execution on the device. Successful exploitation may cause the EasyMesh daemon to crash and may potentially allow remote code execution when Mesh mode is enabled. This may result in high impact to the confidentiality, integrity, and availability of the affected device.

Affected

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

v < 1.2.1 Build 20260527
Affected range stops below 1.2.1 Build 20260527, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

7.7HIGHTPLink
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-121

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card