Vulnerability · Published Apr 8, 2026 · Assigned by TPLink
CVE-2026-30814Buffer Overflow Vulnerability in TP-Link AX53
High 7.3
In plain English
A high-severity stack buffer overflow in AX53 v1.0 from TP-Link Systems Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).
Official description
A stack-based buffer overflow in the tmpServer module of TP-Link Archer AX53 v1.0 allows an authenticated adjacent attacker to trigger a segmentation fault and potentially execute arbitrary code via a specially crafted configuration file. Successful exploitation may cause a crash and could allow arbitrary code execution, enabling modification of device state, exposure of sensitive data, or further compromise of device integrity. This issue affects AX53 v1.0: before 1.7.1 Build 20260213.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| TP-Link Systems Inc. | AX53 v1.0 | 0 – before 1.7.1 Build 20260213 |
Weakness: CWE-121 · Vector: CVSS:4.0/AV:A/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L
References
- https://www.tp-link.com/my/support/download/archer-ax53/v1/#Firmware patch
- https://www.tp-link.com/en/support/download/archer-ax53/v1/#Firmware patch
- https://talosintelligence.com/vulnerability_reports/ third-party-advisory
- https://www.tp-link.com/us/support/faq/5055/ vendor-advisory
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2302