D-Link DIR-823G 1.0.2B05 vsftpd /etc/vsftpd.conf least privilege violation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in D-Link DIR-823G 1.0.2B05. The impacted element is an unknown function of the file /etc/vsftpd.conf of the component vsftpd. Executing a manipulation can lead to least privilege violation. This vulnerability is tracked as CVE-2026-11492. The attack can be launched remotely. Moreover, an exploit is present.

Detailsinfo

A vulnerability has been found in D-Link DIR-823G 1.0.2B05 and classified as problematic. This vulnerability affects some unknown functionality of the file /etc/vsftpd.conf of the component vsftpd. The manipulation with an unknown input leads to a least privilege violation vulnerability. The CWE definition for the vulnerability is CWE-272. The elevated privilege level required to perform operations such as chroot() should be dropped immediately after the operation is performed. As an impact it is known to affect integrity.

The advisory is shared for download at notion.so. This vulnerability was named CVE-2026-11492. The exploitation appears to be easy. The attack can be initiated remotely. Technical details and also a public exploit are known. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 06/12/2026). The MITRE ATT&CK project declares the attack technique as T1068.

It is possible to download the exploit at notion.so. 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.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-35023). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Vendor

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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: 5.8
VulDB Meta Temp Score: 5.7

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔒

CNA Base Score: 4.3
CNA Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Least privilege violation
CWE: CWE-272 / CWE-266
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

06/07/2026 Advisory disclosed
06/07/2026 +0 days VulDB entry created
06/12/2026 +5 days VulDB entry last update

Sourcesinfo

Vendor: dlink.com

Advisory: notion.so
Status: Not defined

CVE: CVE-2026-11492 (🔒)
GCVE (CVE): GCVE-0-2026-11492
GCVE (VulDB): GCVE-100-369112
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/07/2026 12:21
Updated: 06/12/2026 20:56
Changes: 06/07/2026 12:21 (56), 06/08/2026 18:52 (1), 06/12/2026 20:56 (41)
Complete: 🔍
Submitter: L-14
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #834816: D-Link DIR823G V1.0.2B05_20181207 Misconfiguration (by L-14)

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

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