TOTOLINK N600R up to 4.3.0cu.7866_B20220506 HTTP Request /cgi-bin/cstecgi.cgi setWiFiBasicConfig wepkey 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 N600R up to 4.3.0cu.7866_B20220506. It has been classified as critical. Affected is the function setWiFiBasicConfig of the file /cgi-bin/cstecgi.cgi of the component HTTP Request Handler. Performing a manipulation of the argument wepkey results in buffer overflow. This vulnerability is identified as CVE-2025-11444. The attack can be initiated remotely. Additionally, an exploit exists.

Detailsinfo

A vulnerability was found in TOTOLINK N600R up to 4.3.0cu.7866_B20220506. It has been classified as critical. This affects the function setWiFiBasicConfig of the file /cgi-bin/cstecgi.cgi of the component HTTP Request Handler. The manipulation of the argument wepkey 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 advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2025-11444. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details and a public exploit are known.

The exploit is shared for download at github.com. 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.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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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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

10/07/2025 Advisory disclosed
10/07/2025 +0 days VulDB entry created
10/08/2025 +1 days VulDB entry last update

Sourcesinfo

Vendor: totolink.net

Advisory: github.com
Status: Not defined

CVE: CVE-2025-11444 (🔒)
GCVE (CVE): GCVE-0-2025-11444
GCVE (VulDB): GCVE-100-327381
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 10/07/2025 15:24
Updated: 10/08/2025 10:54
Changes: 10/07/2025 15:24 (57), 10/08/2025 10:54 (31)
Complete: 🔍
Submitter: z472421519
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #666915: TOTOLINK N600R firmware V4.3.0cu.7866_B20220506 Buffer Overflow (by z472421519)

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