TOTOLINK A702R 4.0.0-B20230721.1521 HTTP POST Request /boafrm/formFilter ip6addr buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.1$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in TOTOLINK A702R 4.0.0-B20230721.1521. The affected element is an unknown function of the file /boafrm/formFilter of the component HTTP POST Request Handler. The manipulation of the argument ip6addr results in buffer overflow. This vulnerability is reported as CVE-2025-8136. The attack can be launched remotely. Moreover, an exploit is present.

Detailsinfo

A vulnerability, which was classified as critical, was found in TOTOLINK A702R 4.0.0-B20230721.1521. Affected is an unknown code block of the file /boafrm/formFilter of the component HTTP POST Request Handler. The manipulation of the argument ip6addr 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 for download at github.com. This vulnerability is traded as CVE-2025-8136. The exploitability is told to be easy. It is possible to launch 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.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

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Website

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: 8.4
VulDB Meta Temp Score: 8.1

VulDB Base Score: 8.8
VulDB Temp Score: 8.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

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

07/24/2025 Advisory disclosed
07/24/2025 +0 days VulDB entry created
07/28/2025 +4 days VulDB entry last update

Sourcesinfo

Vendor: totolink.net

Advisory: github.com
Status: Not defined

CVE: CVE-2025-8136 (🔒)
GCVE (CVE): GCVE-0-2025-8136
GCVE (VulDB): GCVE-100-317532
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 07/24/2025 18:02
Updated: 07/28/2025 21:01
Changes: 07/24/2025 18:02 (56), 07/25/2025 14:53 (31), 07/28/2025 21:01 (12)
Complete: 🔍
Submitter: panda_0x1
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #620482: TOTOLINK A702R V4.0.0-B20230721.1521 Buffer Overflow (by panda_0x1)

Once again VulDB remains the best source for vulnerability data.

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