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2025.02.x ▾
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CVE-2026-84732
Component Overview
Vulnerability Overview
Name
CVE-2026-84732
Source
NVD (
link
)
Debian (
link
)
Description
Retransmissions of ACK packet ID in OpenVPN through 2.6.22 and 2.7.6 allow remote unauthenticated attackers to cause a denial of service via crafted inputs that trigger a timeout integer overflow
CWEs
CWE-190
Published Date
Sep 7, 2026
Updated Date
Sep 8, 2026
Workaround
-
Advisories
Analysis
#
Affected Component
Analysis
openvpn
Patched
Vulnerability Ratings
#
8.7
CVSSv4
NaN
other
Others affected components
#
Name
Project
Project Version
Version
Status
openvpn
buildroot
master
2.7.8
Not Affected
openvpn
openwrt
master
2.7.7-r1
Not Affected
openvpn
openwrt
openwrt-25.12
2.7.7-r1
Not Affected
openvpn
yocto
kirkstone
2.5.11
Not Affected
openvpn
yocto
master
2.7.7
Not Affected
openvpn
yocto
scarthgap
2.6.14
Not Affected
Resolved with patches
#
openvpn (buildroot:2025.02.x)
#
Title
Author
Resolve
1
Avoid unbounded reliable TLS timeout
Arne Schwabe <arne@rfc2549.org>
2026-84732
CVE-2026-84732
2
Ignore acks for packets that cannot be outstanding
Arne Schwabe <arne@rfc2549.org>
2026-84732
CVE-2026-84732