CVE-2026-2911

HIGH
2026-02-22 [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 - 22:04 vuln.today
PoC Detected
Feb 23, 2026 - 20:21 vuln.today
Public exploit code
CVE Published
Feb 22, 2026 - 04:15 nvd
HIGH 8.8

Tags

Buffer Overflow Fh451 Firmware

Description

A vulnerability has been found in Tenda FH451 up to 1.0.0.9. This issue affects some unknown processing of the file /goform/GstDhcpSetSer. The manipulation leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Analysis

Buffer overflow in Tenda FH451 firmware versions up to 1.0.0.9 allows authenticated remote attackers to achieve code execution through crafted requests to the /goform/GstDhcpSetSer endpoint. Public exploit code exists for this vulnerability, and no patch is currently available, leaving all affected devices at risk.

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Remediation

Within 24 hours: Inventory all Tenda FH451 devices in production and assess network exposure; isolate or restrict access to affected devices if possible. Within 7 days: Contact Tenda for patch availability and timeline; implement network segmentation to limit device accessibility. …

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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-2026-2911 vulnerability details – vuln.today
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