CVE-2026-3400

HIGH
2026-03-02 [email protected]
8.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
PoC Detected
Mar 03, 2026 - 19:48 vuln.today
Public exploit code
CVE Published
Mar 02, 2026 - 00:16 nvd
HIGH 8.8

Description

A security flaw has been discovered in Tenda AC15 up to 15.13.07.13. Affected by this issue is some unknown functionality of the file /goform/TextEditingConversion. The manipulation of the argument wpapsk_crypto2_4g results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks.

Analysis

Remote code execution in Tenda AC15 firmware versions up to 15.13.07.13 via a stack-based buffer overflow in the /goform/TextEditingConversion endpoint allows unauthenticated attackers to achieve complete system compromise. Public exploit code exists for this vulnerability, and no patch is currently available, creating immediate risk for deployed devices. …

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Remediation

Within 24 hours: Inventory all Tenda AC15 devices running firmware 15.13.07.13 or earlier and isolate critical systems from affected routers. Within 7 days: Implement network segmentation to limit lateral movement from compromised devices and enable enhanced monitoring on affected equipment. …

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Priority Score

64
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +44
POC: +20

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CVE-2026-3400 vulnerability details – vuln.today

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