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F453 Firmware CVE-2026-3167

HIGH
Buffer Overflow (CWE-119)
2026-02-25 cna@vuldb.com
8.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
8.8 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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 25, 2026 - 17:52 vuln.today
Public exploit code
CVE Published
Feb 25, 2026 - 07:16 nvd
HIGH 8.8

DescriptionCVE.org

A security flaw has been discovered in Tenda F453 1.0.0.3. The impacted element is the function formWebTypeLibrary of the file /goform/webtypelibrary of the component httpd. Performing a manipulation of the argument webSiteId results in buffer overflow. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks.

AnalysisAI

Unauthenticated attackers can trigger a buffer overflow in the Tenda F453 firmware via the webSiteId parameter in the /goform/webtypelibrary endpoint, enabling remote code execution with full system compromise. Public exploit code is available and actively deployed against affected devices. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Authenticate to Tenda F453 httpd
Delivery
Send crafted request to /goform/webtypelibrary
Exploit
Manipulate webSiteId parameter
Execution
Trigger buffer overflow in formWebTypeLibrary
Impact
Execute arbitrary code

Vulnerability AssessmentAI

Exploitation Tenda F453 firmware 1.0.0.3; authenticated user access to httpd web interface; /goform/webtypelibrary endpoint accessible; webSiteId parameter processing in formWebTypeLibrary function must accept oversized input without bounds checking. Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 8.8 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario A remote attacker could exploit this flaw, buffer overflow.
Remediation Monitor vendor advisories for a patch. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Inventory all Tenda F453 1.0.0.3 devices in production and isolate affected units from critical network segments. …

Sign in for detailed remediation steps and compensating controls.

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-3167 vulnerability details – vuln.today

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