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.
Published: 2026-09-07
Score: 5.9 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 07 Sep 2026 08:45:00 +0000

Type Values Removed Values Added
Title Memory Corruption and Sensitive Information Disclosure via Crafted NRPT Inputs in Windows Interactive Service
First Time appeared Openvpn
Openvpn openvpn
Vendors & Products Openvpn
Openvpn openvpn

Mon, 07 Sep 2026 07:45:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-131
References
Metrics cvssV4_0

{'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'}

Subscriptions

Openvpn Openvpn
cve-icon MITRE

Status: PUBLISHED

Assigner: OpenVPN

Published:

Updated: 2026-09-07T07:28:14.135Z

Reserved: 2026-08-26T14:41:20.459Z

Link: CVE-2026-78221

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-07T08:17:12.813

Modified: 2026-09-07T08:17:12.813

Link: CVE-2026-78221

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-07T08:30:14Z

Weaknesses
  • CWE-131

    Incorrect Calculation of Buffer Size