High severity · published Apr 8, 2026
CVE-2026-30814
Buffer Overflow Vulnerability in TP-Link AX53
8.0
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AV
AX53 v1.0 · TP-Link Systems Inc.
before 1.7.1 Build 20260213 · source: vendor
AA
Archer Ax53 Firmware · Tp-link
before 1.7.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-30814
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-30814
Third Party Advisory
https://talosintelligence.com/vulnerability_reports/
Product
https://www.tp-link.com/en/support/download/archer-ax53/v1/#Firmware
Product
https://www.tp-link.com/my/support/download/archer-ax53/v1/#Firmware
Vendor Advisory
https://www.tp-link.com/us/support/faq/5055/
www.talosintelligence.com
https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2302
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