Is CVE-2026-11492 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-11492 being exploited in the wild.

How severe is CVE-2026-11492?

Medium severity, with a CVSS score of 4.3, published 8 June 2026.

Is there a fix for CVE-2026-11492?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-11492 attacked?

It is attacked over the network, in device firmware.

Am I affected by CVE-2026-11492?

Check whether you run D-Link DIR-823G at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-11492: D-Link DIR-823G privilege escalation in vsftpd.conf

CVE-2026-11492 · Severity: medium · CVSS 4.3 · Published 2026-06-08

A security flaw exists in the D-Link DIR-823G router, a device used to provide internet connectivity and local networking. An attacker can exploit a configuration error in the file transfer service to gain unauthorized permissions. This could allow a user with low-level access to perform actions they should not be permitted to do, potentially compromising the integrity of files on the device.

Technologies: D-Link DIR-823G. Vendors: D-Link.

Quick answers

Is CVE-2026-11492 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-11492 being exploited in the wild.
How severe is CVE-2026-11492?: Medium severity, with a CVSS score of 4.3, published 8 June 2026.
Which products and versions are affected?: D-Link DIR-823G 1.0.2B05.
Is there a fix for CVE-2026-11492?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-11492 attacked?: It is attacked over the network, in device firmware.
Am I affected by CVE-2026-11492?: Check whether you run D-Link DIR-823G at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A least privilege violation (CWE-272) exists in the D-Link DIR-823G firmware version 1.0.2B05. The vulnerability is rooted in the configuration of the vsftpd component, specifically within the /etc/vsftpd.conf file. A remote attacker with low-privileged credentials can manipulate the service to gain unauthorized permissions (Incorrect Privilege Assignment, CWE-266). While the specific function within the configuration file is not identified, the flaw allows for a remote attack vector. Public exploit code has been released, increasing the risk of exploitation.

Affected products

D-Link DIR-823G 1.0.2B05

Timeline

2026-06-08: disclosed: Initial disclosure via VulDB/NVD

References

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