TOTOLINK T10 4.1.8cu.5207 POST Request /cgi-bin/cstecgi.cgi setUpgradeFW slaveIpList buffer overflow

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

Summaryinfo

A vulnerability was found in TOTOLINK T10 4.1.8cu.5207. It has been rated as critical. Affected by this issue is the function setUpgradeFW of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument slaveIpList leads to buffer overflow. This vulnerability is referenced as CVE-2025-5902. Remote exploitation of the attack is possible. Furthermore, an exploit is available.

Detailsinfo

A vulnerability was found in TOTOLINK T10 4.1.8cu.5207 and classified as critical. This issue affects the function setUpgradeFW of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument slaveIpList 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.

It is possible to read the advisory at candle-throne-f75.notion.site. The identification of this vulnerability is CVE-2025-5902. The exploitation is known to be easy. The attack may be initiated remotely. Technical details as well as a public exploit are known.

The exploit is available at candle-throne-f75.notion.site. 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-2025-17589). Statistical analysis made it clear that VulDB provides the best quality for 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: Buffer overflow
CWE: CWE-120 / 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

06/09/2025 🔍
06/09/2025 +0 days 🔍
06/16/2025 +7 days 🔍

Sourcesinfo

Vendor: totolink.net

Advisory: candle-throne-f75.notion.site
Status: Not defined

CVE: CVE-2025-5902 (🔍)
GCVE (CVE): GCVE-0-2025-5902
GCVE (VulDB): GCVE-100-311675
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/09/2025 10:03
Updated: 06/16/2025 16:46
Changes: 06/09/2025 10:03 (57), 06/10/2025 02:14 (1), 06/10/2025 12:26 (31), 06/16/2025 16:46 (1)
Complete: 🔍
Submitter: Yangshuangning
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #592246: TOTOLINK T10 V2_Firmware V2_V4.1.8cu.5207 Buffer Overflow (by Yangshuangning)

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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