D-Link DIR-842 2.01.B04 vsftpd /etc/vsftpd.conf default permission

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 (≈)
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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.
3.0$5k-$25k1.42+

Summaryinfo

A vulnerability classified as critical has been found in D-Link DIR-842 2.01.B04. Affected is an unknown function of the file /etc/vsftpd.conf of the component vsftpd. Performing a manipulation results in default permission. This vulnerability is identified as CVE-2026-19893. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in D-Link DIR-842 2.01.B04. This affects some unknown processing of the file /etc/vsftpd.conf of the component vsftpd. The manipulation with an unknown input leads to a default permission vulnerability. CWE is classifying the issue as CWE-276. During installation, installed file permissions are set to allow anyone to modify those files. This is going to have an impact on integrity.

The advisory is shared at app.notion.com. This vulnerability is uniquely identified as CVE-2026-19893. The exploitability is told to be difficult. It is possible to initiate the attack remotely. Technical details are known, but no exploit is available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 08/14/2026). MITRE ATT&CK project uses the attack technique T1222 for this issue.

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: 3.1
VulDB Meta Temp Score: 3.0

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
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: Default permission
CWE: CWE-276 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
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

08/14/2026 Advisory disclosed
08/14/2026 +0 days VulDB entry created
08/14/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: dlink.com

Advisory: app.notion.com
Status: Not defined

CVE: CVE-2026-19893 (🔒)
GCVE (CVE): GCVE-0-2026-19893
GCVE (VulDB): GCVE-100-390081

Entryinfo

Created: 08/14/2026 20:50
Changes: 08/14/2026 20:50 (53)
Complete: 🔍
Submitter: L14Utopia
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #870588: D-Link DIR-842 DIR-842 2.01.B04 Misconfiguration (by L14Utopia)

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

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