TOTOLINK LR350 9.3.5u.6369_B20220309 sub_426EF8 Password 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 marked as critical has been reported in TOTOLINK LR350 9.3.5u.6369_B20220309. The affected element is the function sub_426EF8. Performing a manipulation of the argument Password results in buffer overflow. This vulnerability is identified as CVE-2025-63466. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical has been found in TOTOLINK LR350 9.3.5u.6369_B20220309. This affects the function sub_426EF8. The manipulation of the argument password with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Totolink LR350 v9.3.5u.6369_B20220309 was discovered to contain a stack overflow via the password parameter in the sub_426EF8 function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2025-63466 since 10/27/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/31/2025).

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-2025-37372). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

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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: 8.5

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

10/27/2025 CVE reserved
10/31/2025 +4 days Advisory disclosed
10/31/2025 +0 days VulDB entry created
10/31/2025 +0 days VulDB entry last update

Sourcesinfo

Vendor: totolink.net

Advisory: github.com
Status: Not defined

CVE: CVE-2025-63466 (🔒)
GCVE (CVE): GCVE-0-2025-63466
GCVE (VulDB): GCVE-100-330831
EUVD: 🔒

Entryinfo

Created: 10/31/2025 17:05
Updated: 10/31/2025 17:48
Changes: 10/31/2025 17:05 (54), 10/31/2025 17:48 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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