DEBIAN-CVE-2026-88964

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Source
https://security-tracker.debian.org/tracker/CVE-2026-88964
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88964.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-88964
Upstream
  • CVE-2026-88964
Published
2026-10-13T23:19:13Z
Modified
2026-10-16T09:47:36Z
Severity
  • 7.1 (High) CVSS_V4 - 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

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

References

Affected packages

Debian:12 / openvpn

Package

Name
openvpn
Purl
pkg:deb/debian/openvpn?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.6.3-1
2.6.3-1+deb12u1~bpo11+1
2.6.3-1+deb12u1
2.6.3-1+deb12u2~bpo11+1
2.6.3-1+deb12u2
2.6.3-1+deb12u3
2.6.3-1+deb12u4
2.6.3-2
2.6.3-2.1
2.6.7-1
2.6.9-1
2.6.11-1
2.6.12-1
2.6.13-1
2.6.14-0+deb12u1
2.6.14-0+deb12u2
2.6.14-1
2.6.14-2
2.6.15-1
2.7.0~alpha1-1
2.7.0~alpha2-1
2.7.0~alpha3-1
2.7.0~beta1-1
2.7.0~beta2-1
2.7.0~beta3-1
2.7.0~rc1-1
2.7.0~rc2-1
2.7.0~rc2-2
2.7.0~rc3-1
2.7.0~rc4-1
2.7.0~rc5-1
2.7.0~rc6-1
2.7.0-1~bpo13+1
2.7.0-1
2.7.1-1~bpo13+1
2.7.1-1
2.7.2-1~bpo13+1
2.7.2-1
2.7.3-1
2.7.5-1~bpo13+1
2.7.5-1
2.7.7-1~bpo13+1
2.7.7-1
2.7.8-1~bpo13+1
2.7.8-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88964.json"

Debian:13 / openvpn

Package

Name
openvpn
Purl
pkg:deb/debian/openvpn?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.6.14-1
2.6.14-1+deb13u1
2.6.14-1+deb13u2
2.6.14-1+deb13u3
2.6.14-2
2.6.15-1
2.7.0~alpha1-1
2.7.0~alpha2-1
2.7.0~alpha3-1
2.7.0~beta1-1
2.7.0~beta2-1
2.7.0~beta3-1
2.7.0~rc1-1
2.7.0~rc2-1
2.7.0~rc2-2
2.7.0~rc3-1
2.7.0~rc4-1
2.7.0~rc5-1
2.7.0~rc6-1
2.7.0-1~bpo13+1
2.7.0-1
2.7.1-1~bpo13+1
2.7.1-1
2.7.2-1~bpo13+1
2.7.2-1
2.7.3-1
2.7.5-1~bpo13+1
2.7.5-1
2.7.7-1~bpo13+1
2.7.7-1
2.7.8-1~bpo13+1
2.7.8-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88964.json"

Debian:14 / openvpn

Package

Name
openvpn
Purl
pkg:deb/debian/openvpn?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.7.8-1

Affected versions

2.*
2.6.14-1
2.6.14-2
2.6.15-1
2.7.0~alpha1-1
2.7.0~alpha2-1
2.7.0~alpha3-1
2.7.0~beta1-1
2.7.0~beta2-1
2.7.0~beta3-1
2.7.0~rc1-1
2.7.0~rc2-1
2.7.0~rc2-2
2.7.0~rc3-1
2.7.0~rc4-1
2.7.0~rc5-1
2.7.0~rc6-1
2.7.0-1~bpo13+1
2.7.0-1
2.7.1-1~bpo13+1
2.7.1-1
2.7.2-1~bpo13+1
2.7.2-1
2.7.3-1
2.7.5-1~bpo13+1
2.7.5-1
2.7.7-1~bpo13+1
2.7.7-1
2.7.8-1~bpo13+1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88964.json"