CVE-2026-88964

openvpn: An integer underflow in OpenVPN version 2.7_alpha3 through 2.7.7 on Windows and Android allows remote authenticated s...

CVE-2026-88964 is fixed in openvpn on 1 platform by DEBIAN-CVE-2026-88964 (version 2.7.8-1), released October 12, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
No vendor severity
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0038
31st percentile

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

Where it's fixed

ProductFixed inFixReleased
Linux
openvpn · Debian 14 2.7.8-1 DEBIAN-CVE-2026-88964 Oct 12, 2026

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