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CVE-2026-13518: Stack-based Buffer Overflow in Tenda JD12L

0
High
VulnerabilityCVE-2026-13518cvecve-2026-13518
Published: 06/29/2026 (06/29/2026, 00:15:08 UTC)
Source: CVE Database V5
Vendor/Project: Tenda
Product: JD12L

Description

CVE-2026-13518 is a stack-based buffer overflow vulnerability in the Tenda JD12L router firmware version 16.03.53.23. The flaw exists in the fromAddressNat function within the /goform/addressNat endpoint, where improper handling of the 'page' argument can lead to memory corruption. This vulnerability is remotely exploitable without user interaction and has a high severity rating. No official patch or remediation guidance has been provided yet.

CVSS v4.0

Score 8.7high

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Vuln. Confidentiality
High
Vuln. Integrity
High
Vuln. Availability
High
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

Affected software

Affected versions
=16.03.53.23
CPE configurations
cpe:2.3:h:tenda:jd12l:*:*:*:*:*:*:*:*

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 06/29/2026, 00:36:20 UTC

Technical Analysis

The Tenda JD12L router firmware version 16.03.53.23 contains a stack-based buffer overflow vulnerability in the fromAddressNat function of the /goform/addressNat file. This occurs due to improper validation or handling of the 'page' argument, allowing an attacker to overwrite stack memory. The vulnerability is remotely exploitable without requiring user interaction and has a CVSS 4.0 base score of 8.7, indicating high severity. Although the exploit has been publicly disclosed, no vendor patch or official remediation has been announced as of the publication date.

Potential Impact

Successful exploitation of this vulnerability can lead to memory corruption on the affected device, potentially allowing an attacker to execute arbitrary code remotely with limited privileges. This could result in compromise of the device's integrity and availability. The vulnerability does not require user interaction and can be triggered over the network, increasing the risk of remote attacks.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider restricting network access to the affected device's management interface to trusted hosts only and monitor for unusual activity. No official patch or temporary fix has been provided by the vendor at this time.

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Technical Details

Data Version
5.2
Assigner Short Name
VulDB
Date Reserved
2026-06-28T06:45:48.210Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 6a41ba9a27e9c79719d9e6c6

Added to database: 06/29/2026, 00:21:46 UTC

Last enriched: 06/29/2026, 00:36:20 UTC

Last updated: 06/29/2026, 03:36:54 UTC

Views: 32

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