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| f6dfe1 | flichtenheld | 2026-10-15 10:11:01 | 1 | # CVE-2026-11604 - Windows kernel heap corruption via max epoch fast-forward in receive-key generation |
| 3fcb24 | David Sommerseth | 2026-06-08 19:15:52 | 2 | |
| f6dfe1 | flichtenheld | 2026-10-15 10:11:01 | 3 | An incorrect buffer size calculation in the epoch key generator in OpenVPN ovpn-dco-win allows a remote authenticated peer to trigger a heap-based buffer overflow and kernel memory corruption via a crafted data packet, resulting in a system crash (denial of service). |
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| 5 | ovpn-dco-win driver for Windows version 2.0.0 through 2.8.2 are affected. This is fixed in version 2.8.3. |
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| 7 | A fixed driver is contained in OpenVPN Windows installer packages for 2.7.4-I002. |
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| 9 | CVE Record: [CVE-2026-11604](https://www.cve.org/CVERecord?id=CVE-2026-11604) |
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| 11 | Release notes: |
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| 12 | * [ovpn-dco-win-2.8.3](https://github.com/OpenVPN/ovpn-dco-win/releases/tag/2.8.3) |