VDB-320495 · CVE-2025-55586 · GCVE-0-2025-55586

TOTOLINK A3002R 4.0.0-B20230531.1404 Parameter /boafrm/formFilter url 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.
8.5	$0-$5k	0.00

Summaryinfo

A vulnerability was found in TOTOLINK A3002R 4.0.0-B20230531.1404. It has been rated as critical. Affected is an unknown function of the file /boafrm/formFilter of the component Parameter Handler. The manipulation of the argument url leads to buffer overflow. This vulnerability is referenced as CVE-2025-55586. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in TOTOLINK A3002R 4.0.0-B20230531.1404 and classified as critical. This issue affects an unknown function of the file /boafrm/formFilter of the component Parameter Handler. The manipulation of the argument url 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. The summary by CVE is:

TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow in the url parameter at /boafrm/formFilter. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2025-55586 since 08/13/2025. The exploitation is known to be easy. The attack may be initiated 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 08/21/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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

Productinfo

Vendor

TOTOLINK

Name

A3002R

Version

4.0.0-B20230531.1404

License

commercial

Website

Vendor: https://www.totolink.net/

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

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

08/13/2025 CVE reserved
08/18/2025 +5 days Advisory disclosed
08/18/2025 +0 days VulDB entry created
08/21/2025 +3 days VulDB entry last update

Sourcesinfo

Vendor: totolink.net

Advisory: github.com
Status: Not defined

CVE: CVE-2025-55586 (🔒)
GCVE (CVE): GCVE-0-2025-55586
GCVE (VulDB): GCVE-100-320495

Entryinfo

Created: 08/18/2025 22:28
Updated: 08/21/2025 17:58
Changes: 08/18/2025 22:28 (55), 08/21/2025 17:58 (1)
Complete: 🔍
Cache ID: 216::103