Authenticated privilege escalation via undisclosed vsftpd misconfiguration
Published Jun 8, 2026 · Updated Jun 8, 2026
Privilege misconfiguration in vsftpd on D-Link DIR-823G 1.0.2B05 allows remote authenticated users to gain unintended privileges. The public record identifies /etc/vsftpd.conf as the affected locus but does not disclose the directive or operation that assigns excess privilege. Low-privileged credentials and network reachability are required; the grounded consequence is unauthorized integrity modification, not demonstrated code execution or disclosure.
Summary
What happened
Privilege misconfiguration in vsftpd on D-Link DIR-823G 1.0.2B05 allows remote authenticated users to gain unintended privileges. The public record identifies /etc/vsftpd.conf as the affected locus but does not disclose the directive or operation that assigns excess privilege. Low-privileged credentials and network reachability are required; the grounded consequence is unauthorized integrity modification, not demonstrated code execution or disclosure.
The record
- CVE
- CVE-2026-11492
- Published
- Jun 8, 2026
- Updated
- Jun 8, 2026
- Vendor
- D-Link
- Product
- DIR-823G
- Classifications
- CWE-266, CWE-272
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 8, 2026CVE publishedPublication date reported by the CVE source.
- Jun 8, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.0.2B05
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- D-Link DIR823G V1.0.2B05_20181207proof of concept · unverified
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Technologies
Your stack
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Your stack
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