CVE-2026-88964
High
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
SeverityHigh
CVSS7.1
Exploit probability—
ProductOpenVPN
PublishedOct 13, 2026
First seenOct 13, 2026
Weakness typeCWE-191CWE-191CWE-125Out-of-bounds read
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| OpenVPN OpenVPN | 2.7_alpha3 ≤ v ≤ 2.7.7 | — |
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