Tenda FH451 1.0.0.9 /goform/PPTPDClient fromPptpUserAdd Username stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Tenda FH451 1.0.0.9. This affects the function fromPptpUserAdd of the file /goform/PPTPDClient. Performing a manipulation of the argument Username results in stack-based overflow. This vulnerability is reported as CVE-2025-7796. The attack is possible to be carried out remotely. Moreover, an exploit is present.

Detailsinfo

A vulnerability, which was classified as critical, was found in Tenda FH451 1.0.0.9. This affects the function fromPptpUserAdd of the file /goform/PPTPDClient. The manipulation of the argument username with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2025-7796. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details and a public exploit are known.

The exploit is shared for download 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-2025-21908). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔍
CNA CVSS-BT Score: 🔍
CNA Vector: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.4

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

CNA Base Score: 8.8
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

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

07/18/2025 🔍
07/18/2025 +0 days 🔍
07/23/2025 +5 days 🔍

Sourcesinfo

Vendor: tenda.com.cn

Advisory: github.com
Status: Not defined

CVE: CVE-2025-7796 (🔍)
GCVE (CVE): GCVE-0-2025-7796
GCVE (VulDB): GCVE-100-316857
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 07/18/2025 09:56
Updated: 07/23/2025 20:21
Changes: 07/18/2025 09:56 (57), 07/18/2025 22:02 (1), 07/23/2025 20:21 (32)
Complete: 🔍
Submitter: panda_0x1
Cache ID: 216::103

Submitinfo

Accepted

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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