TOTOLINK A3002R 1.1.1-B20200824.0128 /bin/boa formIpv6Setup pppoe_dns1 buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.5$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in TOTOLINK A3002R 1.1.1-B20200824.0128. The affected element is the function formIpv6Setup of the file /bin/boa. Executing a manipulation of the argument pppoe_dns1 can lead to buffer overflow. This vulnerability appears as CVE-2025-25635. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability classified as critical was found in TOTOLINK A3002R 1.1.1-B20200824.0128. This vulnerability affects the function formIpv6Setup of the file /bin/boa. The manipulation of the argument pppoe_dns1 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 confidentiality, integrity, and availability. CVE summarizes:

TOTOlink A3002R V1.1.1-B20200824.0128 contains a buffer overflow vulnerability. The vulnerability arises from the improper input validation of the pppoe_dns1 parameter in the formIpv6Setup interface of /bin/boa.

The advisory is available at github.com. This vulnerability was named CVE-2025-25635 since 02/07/2025. The exploitation appears to be easy. The attack can be initiated 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 09/02/2025).

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-2025-5933). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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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

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

02/07/2025 🔍
02/28/2025 +21 days 🔍
02/28/2025 +0 days 🔍
09/02/2025 +186 days 🔍

Sourcesinfo

Vendor: totolink.net

Advisory: github.com
Status: Not defined

CVE: CVE-2025-25635 (🔍)
GCVE (CVE): GCVE-0-2025-25635
GCVE (VulDB): GCVE-100-298018
EUVD: 🔍

Entryinfo

Created: 02/28/2025 20:56
Updated: 09/02/2025 19:49
Changes: 02/28/2025 20:56 (55), 06/02/2025 03:44 (1), 09/02/2025 19:49 (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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