Tenda F456 1.0.0.5 httpd /goform/SafeUrlFilter fromSafeUrlFilter page buffer overflow

Summaryinfo

A vulnerability marked as critical has been reported in Tenda F456 1.0.0.5. The affected element is the function fromSafeUrlFilter of the file /goform/SafeUrlFilter of the component httpd. This manipulation of the argument page causes buffer overflow. The identification of this vulnerability is CVE-2026-7056. It is possible to initiate the attack remotely. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability was found in Tenda F456 1.0.0.5. It has been declared as critical. Affected by this vulnerability is the function fromSafeUrlFilter of the file /goform/SafeUrlFilter of the component httpd. The manipulation of the argument page with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-7056. The exploitation appears to be easy. The attack can be launched remotely. Technical details and also a public exploit are known.

It is possible to download the exploit at github.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-25726). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.0

VulDB Base Score: 8.8
VulDB Temp Score: 8.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/26/2026 Advisory disclosed
04/26/2026 +0 days VulDB entry created
04/26/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: tenda.com.cn

Advisory: github.com
Status: Not defined

CVE: CVE-2026-7056 (🔒)
GCVE (CVE): GCVE-0-2026-7056
GCVE (VulDB): GCVE-100-359629
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/26/2026 03:08
Updated: 04/26/2026 22:30
Changes: 04/26/2026 03:08 (58), 04/26/2026 22:30 (1)
Complete: 🔍
Submitter: LtzHust
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #798458: Tenda F456 v1.0.0.5 Stack-based Buffer Overflow (by LtzHust)

Duplicate

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Discussion

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