Tenda AX-1803 1.0.0.1 sub_4F55C wanMTU stack-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.0$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Tenda AX-1803 1.0.0.1. This affects the function sub_4F55C. Such manipulation of the argument wanMTU leads to stack-based overflow. This vulnerability is traded as CVE-2025-63457. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Tenda AX-1803 1.0.0.1. Affected by this issue is the function sub_4F55C. The manipulation of the argument wanMTU with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to 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). Impacted is confidentiality, integrity, and availability. CVE summarizes:

Tenda AX-1803 v1.0.0.1 was discovered to contain a stack overflow via the wanMTU parameter in the sub_4F55C function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2025-63457 since 10/27/2025. 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 11/18/2025).

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.2
VulDB Meta Temp Score: 8.0

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

NVD Base Score: 7.5
NVD 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: 🔒
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

10/27/2025 CVE reserved
11/10/2025 +14 days Advisory disclosed
11/10/2025 +0 days VulDB entry created
11/18/2025 +8 days VulDB entry last update

Sourcesinfo

Vendor: tenda.com.cn

Advisory: github.com
Status: Not defined

CVE: CVE-2025-63457 (🔒)
GCVE (CVE): GCVE-0-2025-63457
GCVE (VulDB): GCVE-100-331724

Entryinfo

Created: 11/10/2025 17:33
Updated: 11/18/2025 06:27
Changes: 11/10/2025 17:33 (55), 11/18/2025 06:27 (11)
Complete: 🔍
Cache ID: 216::103

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