Detections
Analytics

CVE-2026-78221

medium

Description

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 sensitive information via crafted NRPT inputs.

References

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-72276

https://community.openvpn.net/Security%20Announcements/CVE-2026-78221

Details

Source: Mitre, NVD

Published: 2026-09-07

Updated: 2026-09-08

Risk Information

CVSS v2

Base Score: 2.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N

Severity: Low

CVSS v3

Base Score: 7.1

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Severity: High

CVSS v4

Base Score: 5.9

Vector: CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:H/VI:N/VA:H/SC:H/SI:N/SA:H

Severity: Medium

EPSS

EPSS: 0.00116