PT-2022-10663 · Netfilter+5 · Netfilter+5

CVE-2021-3773

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Published

2021-09-08

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Updated

2026-08-21

CVSS v2.0

10

Critical

VectorAV:N/AC:L/Au:N/C:C/I:C/A:C
Name of the Vulnerable Software and Affected Versions netfilter (affected versions not specified)
Description A flaw in netfilter could allow a network-connected attacker to infer openvpn connection endpoint information for further use in traditional network attacks.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Information Disclosure

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Weakness Enumeration

CWE-200

Related Identifiers

ALSA-2022:1988
ALT-PU-2021-2824
ALT-PU-2021-2926
ALT-PU-2021-3041
ALT-PU-2022-1063
ALT-PU-2022-1108
ALT-PU-2022-1134
ALT-PU-2022-1155
ALT-PU-2022-1240
ALT-PU-2022-1419
ALT-PU-2022-1421
ALT-PU-2022-1441
ALT-PU-2022-1540
ALT-PU-2023-1814
ALT-PU-2023-4894
BDU:2026-12608
CESA-2022_1975
CESA-2022_1988
CVE-2021-3773
RHSA-2022:1975
RHSA-2022:1988
RHSA-2022_1975
RHSA-2022_1988
RLSA-2022:1975
RLSA-2022:1988

Affected Products

Alt Linux
Almalinux
Centos
Red Hat
Rocky Linux
Netfilter