TOTOLINK A810R 4.1.2cu.5182_B20201026 downloadFile.cgi buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.8$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in TOTOLINK A810R 4.1.2cu.5182_B20201026. Affected by this issue is some unknown functionality of the file downloadFile.cgi. The manipulation results in buffer overflow. This vulnerability was named CVE-2025-28135. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability classified as critical has been found in TOTOLINK A810R 4.1.2cu.5182_B20201026. Affected is an unknown code block of the file downloadFile.cgi. The manipulation 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. CVE summarizes:

TOTOLINK A810R V4.1.2cu.5182_B20201026 was found to contain a buffer overflow vulnerability in downloadFile.cgi.

The advisory is available at sudsy-eyeliner-a59.notion.site. This vulnerability is traded as CVE-2025-28135 since 03/11/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 06/08/2025).

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-2025-8648). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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: 8.8

VulDB Base Score: 8.8
VulDB Temp Score: 8.8
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

03/11/2025 🔍
03/27/2025 +16 days 🔍
03/27/2025 +0 days 🔍
06/08/2025 +73 days 🔍

Sourcesinfo

Vendor: totolink.net

Advisory: sudsy-eyeliner-a59.notion.site
Status: Not defined

CVE: CVE-2025-28135 (🔍)
GCVE (CVE): GCVE-0-2025-28135
GCVE (VulDB): GCVE-100-301698
EUVD: 🔍

Entryinfo

Created: 03/27/2025 17:53
Updated: 06/08/2025 06:38
Changes: 03/27/2025 17:53 (53), 06/08/2025 06:38 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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