CVE-2025-59482
Published: 03 February 2026
Summary
CVE-2025-59482 is a high-severity Heap-based Buffer Overflow (CWE-122) vulnerability in Tp-Link Archer Ax53 Firmware. Its CVSS base score is 8.0 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation of Remote Services (T1210); ranked at the 10.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Requires timely remediation of the heap-based buffer overflow flaw in the tmpserver module via firmware updates, directly eliminating the vulnerability.
Mandates validation of network packet fields, including length checks, to block specially crafted packets exceeding maximum expected values.
Provides memory protections such as address space layout randomization or non-executable heaps to mitigate exploitation of the buffer overflow for arbitrary code execution.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Heap buffer overflow in network service (tmpserver) directly enables remote exploitation of the service for code execution (T1210) and subsequent privilege escalation on the device (T1068).
NVD Description
Heap-based Buffer Overflow vulnerability in TP-Link Archer AX53 v1.0 (tmpserver modules) allows authenticated adjacent attackers to cause a segmentation fault or potentially execute arbitrary code via a specially crafted network packet containing a field whose length exceeds the maximum expected…
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value.This issue affects Archer AX53 v1.0: through 1.3.1 Build 20241120.
Deeper analysisAI
CVE-2025-59482 is a heap-based buffer overflow vulnerability (CWE-122) in the tmpserver modules of the TP-Link Archer AX53 v1.0 router. The flaw occurs when processing a specially crafted network packet containing a field whose length exceeds the maximum expected value, affecting versions through 1.3.1 Build 20241120. Published on 2026-02-03, it carries a CVSS v3.1 base score of 8.0 (AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
Authenticated adjacent attackers can exploit this vulnerability by sending the malicious packet, potentially causing a segmentation fault or executing arbitrary code. The adjacent network access vector (AV:A) and low privileges required (PR:L) combined with low attack complexity (AC:L) and no user interaction (UI:N) make it feasible for nearby authenticated users, such as those on the local Wi-Fi network with valid credentials.
Advisories from Talos Intelligence, including TALOS-2025-2283, detail the vulnerability, while TP-Link provides firmware downloads for Archer AX53 v1.0 on regional support sites (e.g., US, MY, and global). Practitioners should recommend immediate firmware updates to mitigate the issue, as patched versions address the buffer overflow in tmpserver.
Details
- CWE(s)