CVE-2026-30814

high

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.

References

https://www.tp-link.com/us/support/faq/5055/

https://talosintelligence.com/vulnerability_reports/

https://blog.talosintelligence.com/tp-link-photoshop-openvpn-norton-vpn-vulnerabilities/

https://www.tp-link.com/my/support/download/archer-ax53/v1/#Firmware

https://www.tp-link.com/en/support/download/archer-ax53/v1/#Firmware

https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2302

Details

Source: Mitre, NVD

Published: 2026-04-08

Updated: 2026-05-07

Risk Information

CVSS v2

Base Score: 7.7

Vector: CVSS2#AV:A/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8

Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

CVSS v4

Base Score: 7.3

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

Severity: High

EPSS

EPSS: 0.00015