Tenda AC6 15.03.05.16 formSetFirewallCfg firewallEn buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Tenda AC6 15.03.05.16 and classified as critical. This issue affects the function formSetFirewallCfg. Such manipulation of the argument firewallEn leads to buffer overflow. This vulnerability is referenced as CVE-2025-50260. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in Tenda AC6 15.03.05.16 and classified as critical. Affected by this issue is the function formSetFirewallCfg. The manipulation of the argument firewallEn with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Tenda AC6 v15.03.05.16_multi is vulnerable to Buffer Overflow in the formSetFirewallCfg function via the firewallEn parameter.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2025-50260 since 06/16/2025. The exploitation is known to be easy. The attack may be launched remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 07/07/2025).

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-2025-19883). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.5

VulDB Base Score: 8.8
VulDB Temp Score: 8.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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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: 🔒
Status: Not defined

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

06/16/2025 CVE reserved
07/03/2025 +17 days Advisory disclosed
07/03/2025 +0 days VulDB entry created
07/07/2025 +4 days VulDB entry last update

Sourcesinfo

Vendor: tenda.com.cn

Advisory: github.com
Status: Not defined

CVE: CVE-2025-50260 (🔒)
GCVE (CVE): GCVE-0-2025-50260
GCVE (VulDB): GCVE-100-314780
EUVD: 🔒

Entryinfo

Created: 07/03/2025 16:12
Updated: 07/07/2025 18:52
Changes: 07/03/2025 16:12 (55), 07/03/2025 21:12 (1), 07/07/2025 18:52 (1)
Complete: 🔍
Cache ID: 216::103

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