CVE-2026-18167Stack-based buffer overflow in TP-Link Archer AX55 v4
Updated under an hour ago ()
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It affects TP-Link Systems Inc. Archer AX55 v4. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.7 HIGH (v4.0, CNA)CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L
- Weakness (CWE)
- CWE-121
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- TPLink
- NVD analysis
- Deferred
- Record last updated
- Sep 4, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
TP-Link Systems Inc. Archer AX55 v4 tp_link_systems:archer_ax55_v4 (from the name) | before 1.2.1 Build 20260527 | CNA record |
References
- https://www.tp-link.com/us/support/download/archer-ax55/v4/#Firmwarepatch
- https://www.tp-link.com/us/support/faq/5279/vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.