D-Link DI-8100 16.07.21 jhttpd /pppoe_base.asp mschap_en buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.62

Summaryinfo

A vulnerability was found in D-Link DI-8100 16.07.21 and classified as critical. This affects an unknown part of the file /pppoe_base.asp of the component jhttpd. Such manipulation of the argument mschap_en leads to buffer overflow. This vulnerability is referenced as CVE-2025-6881. It is possible to launch the attack remotely. Furthermore, an exploit is available.

Detailsinfo

A vulnerability was found in D-Link DI-8100 16.07.21. It has been rated as critical. Affected by this issue is an unknown code of the file /pppoe_base.asp of the component jhttpd. The manipulation of the argument mschap_en 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.

This vulnerability is handled as CVE-2025-6881. The exploitation is known to be easy. The attack may be launched remotely. Technical details as well as a public exploit are known. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 06/30/2025).

It is declared as proof-of-concept. By approaching the search of inurl:pppoe_base.asp it is possible to find vulnerable targets with Google Hacking.

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-2025-19507). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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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: 8.8
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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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
Google Hack: 🔒

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

06/28/2025 Advisory disclosed
06/28/2025 +0 days VulDB entry created
06/30/2025 +2 days VulDB entry last update

Sourcesinfo

Vendor: dlink.com

Status: Not defined

CVE: CVE-2025-6881 (🔒)
GCVE (CVE): GCVE-0-2025-6881
GCVE (VulDB): GCVE-100-314360
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/28/2025 16:51
Updated: 06/30/2025 13:23
Changes: 06/28/2025 16:51 (54), 06/30/2025 04:45 (31), 06/30/2025 05:08 (1), 06/30/2025 13:23 (1)
Complete: 🔍
Submitter: bazhuayu
Cache ID: 216:FBB:103

Submitinfo

Accepted

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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