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Vulnerability record · CVE-2026-7056 · published 26 April 2026

CVE-2026-7056: Tenda f456 firmware memory buffer overflow vulnerability

Tenda · F456 Firmware

A vulnerability was detected in Tenda F456 1.0.0.5. Impacted is the function fromSafeUrlFilter of the file /goform/SafeUrlFilter of the component httpd. The manipulation of the argument page results in buffer overflow. The attack may be performed from remote. The exploit is now public and may be used.

7.4 CVSS 4.0 High EPSS 1.0% · top 38.2% CWE-119 · Memory buffer overflowCWE-120 · Classic buffer overflow
7.4CVSS 4.0 base score, v2 9.0
1.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

A vulnerability was detected in Tenda F456 1.0.0.5. Impacted is the function fromSafeUrlFilter of the file /goform/SafeUrlFilter of the component httpd. The manipulation of the argument page results in buffer overflow. The attack may be performed from remote. The exploit is now public and may be used.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/Litengzheng/vuldb_new/blob/main/F456/vul_127/README.md ExploitThird Party Advisory
https://vuldb.com/submit/798458 Third Party AdvisoryVDB Entry
https://vuldb.com/submit/798462 Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/359629 Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/359629/cti Permissions RequiredVDB Entry
https://www.tenda.com.cn/ Product

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.4CVE-2026-7098Tenda f456 firmware memory buffer overflow vulnerabilityA security vulnerability has been detected in Tenda F456 1.0.0.5. Impacted is the function fromDhcpListClient of the file /goform/DhcpListClient of t…EPSS 1.0%7.4CVE-2026-7099Tenda f456 firmware memory buffer overflow vulnerabilityA vulnerability was detected in Tenda F456 1.0.0.5. The affected element is the function formQuickIndex of the file /goform/QuickIndex of the compone…EPSS 1.0%7.4CVE-2026-7100Tenda f456 firmware memory buffer overflow vulnerabilityA flaw has been found in Tenda F456 1.0.0.5. The impacted element is the function fromNatlimitof of the file /goform/Natlimit of the component httpd.…EPSS 1.0%7.4CVE-2026-7101Tenda f456 firmware memory buffer overflow vulnerabilityA vulnerability has been found in Tenda F456 1.0.0.5. This affects the function fromWrlclientSet of the file /goform/WrlclientSet of the component ht…EPSS 1.0%7.4CVE-2026-7097Tenda f456 firmware memory buffer overflow vulnerabilityA weakness has been identified in Tenda F456 1.0.0.5. This issue affects the function fromwebExcptypemanFilter of the file /goform/webExcptypemanFilt…EPSS 1.0%7.4CVE-2026-7081Tenda f456 firmware memory buffer overflow vulnerabilityA vulnerability was detected in Tenda F456 1.0.0.5. Affected is the function fromGstDhcpSetSer of the file /goform/GstDhcpSetSer of the component htt…EPSS 1.0%7.4CVE-2026-7082Tenda f456 firmware memory buffer overflow vulnerabilityA flaw has been found in Tenda F456 1.0.0.5. Affected by this vulnerability is the function formWrlExtraSet of the file /goform/WrlExtraSet of the co…EPSS 1.0%7.4CVE-2026-7080Tenda f456 firmware memory buffer overflow vulnerabilityA security vulnerability has been detected in Tenda F456 1.0.0.5. This impacts the function fromPPTPUserSetting of the file /goform/PPTPUserSetting o…EPSS 1.0%

Source: NIST National Vulnerability Database (record CVE-2026-7056), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.