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›vulnerability›CVE-2026-84732
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
Published Date
Updated Date
Workaround
-
Advisories

Analysis#


Affected Component
Analysis
openvpn
Patched

Vulnerability Ratings#


8.7
CVSSv4
NaN
other

Others affected components#


Name
Project
Project Version
Version
Status
buildroot
master
2.7.8
Not Affected
openwrt
master
2.7.7-r1
Not Affected
openwrt
openwrt-25.12
2.7.7-r1
Not Affected
yocto
kirkstone
2.5.11
Not Affected
yocto
master
2.7.7
Not Affected
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