D-Link DIR-868L 2.01b05 Authentication webfa_authentication.cgi strcpy id/password stack-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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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.
9.1$0-$5k1.22+

Summaryinfo

A vulnerability, which was classified as very critical, has been found in D-Link DIR-868L 2.01b05. Impacted is the function strcpy of the file /webfa_authentication.cgi of the component Authentication Handler. The manipulation of the argument id/password leads to stack-based overflow. This vulnerability is uniquely identified as CVE-2026-94089. The attack is possible to be carried out remotely. Moreover, an exploit is present.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in D-Link DIR-868L 2.01b05. This issue affects the function strcpy of the file /webfa_authentication.cgi of the component Authentication Handler. The manipulation of the argument id/password with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). Impacted is confidentiality, integrity, and availability.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-94089. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/20/2026).

The exploit is available 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.

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

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.1

VulDB Base Score: 10.0
VulDB Temp Score: 9.1
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: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Programming Language: 🔒
Download: 🔒
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

09/20/2026 Advisory disclosed
09/20/2026 +0 days VulDB entry created
09/20/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: dlink.com

Advisory: github.com
Status: Not defined

CVE: CVE-2026-94089 (🔒)
GCVE (CVE): GCVE-0-2026-94089
GCVE (VulDB): GCVE-100-408017
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/20/2026 10:07
Changes: 09/20/2026 10:07 (58)
Complete: 🔍
Submitter: Walnut1337
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #951681: D-Link DIR-868L B1 Stack-based Buffer Overflow (by Walnut1337)

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

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