dbcve.org
Archer Ax53 FirmwareOperating system · Tp Link

CVE-2025-59487

HIGH · 8.0 CVSS v3.1 Published 2026-02-03
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
82/100
Remediation priority · High
Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
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. The vulnerability arises from improper validation of a packet field whose offset is used to determine the write location in memory. By crafting a packet with a manipulated field offset, an attacker can redirect writes to arbitrary memory locations.This issue affects Archer AX53 v1.0: through 1.3.1 Build 20241120.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Heap-based buffer overflow in TP-Link Archer AX53 v1.0's tmpserver module allows authenticated adjacent attackers to write to arbitrary memory locations by manipulating packet field offsets used to determine write locations. This can cause denial of service via segmentation fault or potentially enable arbitrary code execution.

MitigationUpdate to a patched firmware version once released by TP-Link. Until then, restrict network access to trusted authenticated users only, as the attacker requires authentication to exploit this vulnerability.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Archer Ax53 FirmwareOperating system
Affected:= 1.0

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Adjacent
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Confirm device model is TP-Link Archer AX53
    Access the router web interface (typically 192.168.0.1) and navigate to System > System Info, or SSH to the device and run 'cat /proc/cpuinfo' or 'nvram get model' to verify the model number matches 'Archer AX53'
    Affected if The device model is NOT Archer AX53 - this vulnerability only affects that specific model
  2. Verify firmware version is 1.0
    In the router web interface, go to System > Firmware Upgrade or System Tools > Firmware Upgrade to check the current firmware version. On CLI, run 'nvram get fwver' or check the boot log for version 1.0
    Affected if The firmware version is NOT 1.0 - only version 1.0 is listed as affected; other versions may not be vulnerable
  3. Determine if tmpserver module is running
    SSH to the router and run 'ps | grep tmpserver' or 'cat /proc/modules' to check if the tmpserver process is active. Alternatively, check /tmp or /var for tmpserver-related files or logs
    Affected if The tmpserver module is not running - the vulnerability exists in this specific module, so if it is disabled the device may not be affected
  4. Check network accessibility to unauthenticated users
    Review the router's WAN and LAN settings in the web interface under Advanced > Network > WAN or Network > LAN. Determine if the management interface is exposed to untrusted networks or if remote management is enabled
    Affected if The router management interface is accessible from WAN or untrusted LAN segments - adjacent attackers require network proximity to attempt exploitation
  5. Review authentication configuration
    In the router web interface, go to System > Admin Management or Advanced > System > Administration to verify admin credentials. Check if default credentials are in use or if weak authentication is configured
    Affected if Default credentials are in use or authentication is weak - the attacker requires valid authentication credentials to exploit this buffer overflow

A user is affected if they are running TP-Link Archer AX53 firmware version 1.0 with the tmpserver module active, and the device is accessible to unauthenticated adjacent attackers who could obtain valid credentials.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update to a patched firmware version once released by TP-Link. Until then, restrict network access to trusted authenticated users only, as the attacker requires authentication to exploit this vulnerability.

Recommended fix Moderate confidence

Latest available Archer AX53 v1.0 firmware (contact TP-Link support or check tp-link.com for version beyond 1.3.1 Build 20241120)

  1. 1. Log into the TP-Link Archer AX53 web management interface or use the Tether mobile app
  2. 2. Navigate to the Firmware Upgrade section (typically found under 'System' or 'Administration' settings
  3. 3. Check the current firmware version installed on the device
  4. 4. Download the latest firmware version from the official TP-Link support website for the Archer AX53 v1.0
  5. 5. Upload the firmware file and initiate the upgrade process
  6. 6. Wait for the device to reboot and verify the new firmware version is installed
  7. 7. After upgrade, verify the tmpserver modules are functioning correctly
Caveat Firmware upgrades may reset device configurations; backup current settings before upgrading

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Archer Ax53 Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation3.0 h
  • Testing4.0 h
  • Review / QA2.0 h
13.0 hours of engineering $2,300
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-59487 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data