CVE-2026-3273

HIGH
2026-02-27 [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
Feb 27, 2026 - 15:47 vuln.today
Public exploit code
CVE Published
Feb 27, 2026 - 01:16 nvd
HIGH 8.8

Description

A vulnerability was identified in Tenda F453 1.0.0.3. Affected by this vulnerability is the function formWrlsafeset of the file /goform/AdvSetWrlsafeset of the component httpd. Such manipulation of the argument mit_ssid_index leads to buffer overflow. The attack can be executed remotely. The exploit is publicly available and might be used.

Analysis

Remote code execution in Tenda F453 firmware version 1.0.0.3 allows authenticated attackers to execute arbitrary code via a buffer overflow in the wireless security settings endpoint. The vulnerability exists in the httpd component's formWrlsafeset function and can be triggered through manipulation of the mit_ssid_index parameter. …

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Remediation

Within 24 hours: Inventory all Tenda F453 1.0.0.3 devices in your environment and isolate affected units from critical network segments. Within 7 days: Implement network-level compensating controls including WAF rules blocking access to /goform/AdvSetWrlsafeset and restrict administrative access to these devices via network segmentation. …

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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-2026-3273 vulnerability details – vuln.today

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