CVE-2026-6198: Stack-based Buffer Overflow in Tenda F456
CVE-2026-6198 is a high-severity stack-based buffer overflow vulnerability in Tenda F456 version 1. 0. 0. 5. The flaw exists in the fromNatStaticSetting function within the /goform/NatStaticSetting file, where improper handling of the 'page' argument can lead to a buffer overflow. This vulnerability can be exploited remotely without user interaction or elevated privileges. Although the exploit code has been publicly disclosed, there are no confirmed reports of exploitation in the wild. No official patch or remediation guidance has been provided by the vendor as of the publication date.
AI Analysis
Technical Summary
The vulnerability CVE-2026-6198 affects Tenda F456 firmware version 1.0.0.5. It is a stack-based buffer overflow triggered by manipulating the 'page' argument in the fromNatStaticSetting function located in /goform/NatStaticSetting. The vulnerability is remotely exploitable without requiring user interaction or elevated privileges, resulting in high impact on confidentiality, integrity, and availability. The CVSS 4.0 base score is 8.7, reflecting its high severity. No patch or official remediation is currently available, and the exploit has been publicly disclosed.
Potential Impact
Successful exploitation of this vulnerability could allow an unauthenticated remote attacker to cause a stack-based buffer overflow, potentially leading to arbitrary code execution or denial of service. The CVSS score of 8.7 indicates a high impact on confidentiality, integrity, and availability. However, there are no confirmed reports of active exploitation in the wild at this time.
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 limiting network exposure of the affected device and monitor for any updates from Tenda regarding patches or mitigations. No vendor advisory or official remediation instructions are currently available.
CVE-2026-6198: Stack-based Buffer Overflow in Tenda F456
Description
CVE-2026-6198 is a high-severity stack-based buffer overflow vulnerability in Tenda F456 version 1. 0. 0. 5. The flaw exists in the fromNatStaticSetting function within the /goform/NatStaticSetting file, where improper handling of the 'page' argument can lead to a buffer overflow. This vulnerability can be exploited remotely without user interaction or elevated privileges. Although the exploit code has been publicly disclosed, there are no confirmed reports of exploitation in the wild. No official patch or remediation guidance has been provided by the vendor as of the publication date.
CVSS v4.0
Score 8.7high
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-6198 affects Tenda F456 firmware version 1.0.0.5. It is a stack-based buffer overflow triggered by manipulating the 'page' argument in the fromNatStaticSetting function located in /goform/NatStaticSetting. The vulnerability is remotely exploitable without requiring user interaction or elevated privileges, resulting in high impact on confidentiality, integrity, and availability. The CVSS 4.0 base score is 8.7, reflecting its high severity. No patch or official remediation is currently available, and the exploit has been publicly disclosed.
Potential Impact
Successful exploitation of this vulnerability could allow an unauthenticated remote attacker to cause a stack-based buffer overflow, potentially leading to arbitrary code execution or denial of service. The CVSS score of 8.7 indicates a high impact on confidentiality, integrity, and availability. However, there are no confirmed reports of active exploitation in the wild at this time.
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 limiting network exposure of the affected device and monitor for any updates from Tenda regarding patches or mitigations. No vendor advisory or official remediation instructions are currently available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-04-13T08:48:12.088Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69dd369b82d89c981f375085
Added to database: 4/13/2026, 6:31:55 PM
Last enriched: 4/21/2026, 6:16:54 AM
Last updated: 5/29/2026, 7:09:03 PM
Views: 87
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