WID-SEC-W-2026-3202

csafDEcert_bund

DeutschShown in its original language — a full translation is planned for a future version.

OpenVPN: Mehrere Schwachstellen

view advisory published 2026-09-06

Ein lokaler Angreifer kann mehrere Schwachstellen in OpenVPN ausnutzen, um Code auszuführen, Daten zu manipulieren oder einen Denial of Service zu verursachen.

01

describes (7)

Related CVEs.

IDseverity exploitable
CVE-2026-84732US——
Retransmissions of ACK packet ID in OpenVPN through 2.6.22 and 2.7.6 allow remote unauthenticated attackers to cause a denial of service via crafted inputs that trigger a timeout i…
CVE-2026-84256US——
An argument parsing issue in OpenVPN 2.1_rc10 through 2.6.22 and 2.7_alpha1 through 2.7.7 on Windows allows remote authenticated users to execute arbitrary commands via a crafted c…
CVE-2026-84226US——
OpenVPN version 2.5.0 through 2.6.22 and 2.7_alpha1 through 2.7.6 on Windows allows local authenticated users to perform a binary planting attack during network configuration steps
CVE-2026-82312US——
OpenVPN 2.0.0 through 2.6.22 and 2.7_alpha1 through 2.7.6 on Windows allows local authenticated users to cause a denial of service via a NULL DACL on named IPC objects
CVE-2026-81738US——
OpenVPN 2.5.0 through 2.7.6 on Windows using the tap-windows6 driver allows attackers to trigger an out-of-bounds write via crafted DOMAIN-SEARCH entries
CVE-2026-78221US——
An incorrect buffer size calculation in the Windows Interactive Service in OpenVPN 2.7_alpha1 through 2.7.6 allows local authenticated users to cause memory corruption or disclose…
CVE-2026-78043US——
The Windows Interactive Service in OpenVPN 2.7_alpha1 through 2.7.6 allows local authenticated users to bypass the trusted configuration directory constraint and load arbitrary con…
02

references

External citations — patches, advisories, analysis.

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