VDB-278065 · CVE-2024-46571 · EUVD-2024-41889

Draytek Vigor 3910 4.3.2.6 fwuser.cgi sPPPSrvNm buffer overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	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.
6.6	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in Draytek Vigor 3910 4.3.2.6. The impacted element is an unknown function of the file fwuser.cgi. This manipulation of the argument sPPPSrvNm causes buffer overflow. This vulnerability is registered as CVE-2024-46571. No exploit is available.

Detailsinfo

A vulnerability classified as critical was found in Draytek Vigor 3910 4.3.2.6. Affected by this vulnerability is an unknown code of the file fwuser.cgi. The manipulation of the argument sPPPSrvNm with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. The summary by CVE is:

Draytek Vigor 3910 v4.3.2.6 was discovered to contain a buffer overflow in the sPPPSrvNm parameter at fwuser.cgi. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

The advisory is shared at ink-desk-28f.notion.site. This vulnerability is known as CVE-2024-46571 since 09/11/2024. The exploitation appears to be easy. Technical details are known, but no exploit is available.

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-2024-41889). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Router Operating System

Vendor

Draytek

Name

Vigor 3910

Version

4.3.2.6

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.6

VulDB Base Score: 5.7
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/11/2024 🔍
09/18/2024 +7 days 🔍
09/18/2024 +0 days 🔍
06/15/2025 +270 days 🔍

Sourcesinfo

Advisory: ink-desk-28f.notion.site
Status: Not defined

CVE: CVE-2024-46571 (🔍)
GCVE (CVE): GCVE-0-2024-46571
GCVE (VulDB): GCVE-100-278065
EUVD: 🔍

Entryinfo

Created: 09/18/2024 18:31
Updated: 06/15/2025 19:45
Changes: 09/18/2024 18:31 (55), 09/25/2024 02:10 (12), 06/15/2025 19:45 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.