Description
An integer underflow in OpenVPN version 2.7_alpha3 through 2.7.7 on Windows and Android allows remote authenticated servers to cause a denial of service or memory disclosure via crafted domain search options
Published: 2026-10-13
Score: 7.1 High
EPSS: < 1% Very Low
KEV: No
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

Wed, 14 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 14 Oct 2026 19:00:00 +0000

Type Values Removed Values Added
Title Integer Underflow in OpenVPN Domain Search Parsing Causes Denial of Service and Memory Disclosure

Tue, 13 Oct 2026 22:30:00 +0000

Type Values Removed Values Added
Description An integer underflow in OpenVPN version 2.7_alpha3 through 2.7.7 on Windows and Android allows remote authenticated servers to cause a denial of service or memory disclosure via crafted domain search options
Weaknesses CWE-125
CWE-191
References
Metrics cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: OpenVPN

Published:

Updated: 2026-10-14T18:09:15.335Z

Reserved: 2026-09-10T15:53:07.519Z

Link: CVE-2026-88964

cve-icon Vulnrichment

Updated: 2026-10-14T18:09:09.683Z

cve-icon NVD

Status : Received

Published: 2026-10-13T23:19:13.687

Modified: 2026-10-14T18:19:33.853

Link: CVE-2026-88964

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-14T18:45:07Z

Weaknesses
  • CWE-125

    Out-of-bounds Read

  • CWE-191

    Integer Underflow (Wrap or Wraparound)