D-LINK DIR-823X Router: Schwachstelle ermöglicht Codeausführung
WID-SEC-2026-0257 · first 30.01.2026 · updated 30.01.2026 · CVSS 6,3
What it is about
Router der Firma D-LINK enthalten eine Firewall und in der Regel eine WLAN-Schnittstelle. Die Geräte sind hauptsächlich für private Anwender und Kleinunternehmen konzipiert. Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in D-LINK Router ausnutzen, um beliebigen Programmcode auszuführen.
Under what conditions?
Over the network, but only with valid access (login required), for example with stolen credentials or as an insider.
What can happen in the worst case
An attacker could use the vulnerability to
- beliebigen Programmcode auszuführen
Am I affected?
Affected according to the BSI:
- D-LINK Router DIR-823X firwmare v.250416
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
According to the BSI there is no update yet. The vendor notices below name interim protective measures, if any.
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- EU Vulnerability Database vom 2026-01-29 euvd.enisa.europa.eu
- D-Link Security Announcement vom 2026-01-29 supportannouncement.us.dlink.com
- CVE Record vom 2026-01-29 www.cve.org
- PoC vom 2026-01-29 github.com
CVE: CVE-2026-1125
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.