CVE-2021-3773

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

A flaw in netfilter could allow a network-connected attacker to infer openvpn connection endpoint information for further use in traditional network attacks.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-200

Affected software

VendorProductVersions
n/akernelkernel 5.14.0-49.el9, kernel 5.15.15-100.fc34, kernel 5.15.15-200.fc35

References

Timeline

Published
Feb 16, 2022
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-377307.2A remote arbitrary command execution vulnerability was discovered in HPE Aruba Instant (IAP) version(s): Aruba Instant 6.4.x.x: 6.4.4.8-4.2.CVE-2021-377316.2A local path traversal vulnerability was discovered in Aruba SD-WAN Software and Gateways; Aruba Operating System Software version(s): PriorCVE-2021-377327.2A remote arbitrary command execution vulnerability was discovered in HPE Aruba Instant (IAP) version(s): Aruba Instant 6.4.x.x: 6.4.4.8-4.2.CVE-2021-377334.9A remote path traversal vulnerability was discovered in Aruba SD-WAN Software and Gateways; Aruba Operating System Software version(s): PrioCVE-2021-377346.5A remote unauthorized read access to files vulnerability was discovered in Aruba Instant version(s): 6.4.x.x: 6.4.4.8-4.2.4.18 and below; ArCVE-2021-377355.3A remote denial of service vulnerability was discovered in Aruba Instant version(s): Aruba Instant 6.5.x.x: 6.5.4.18 and below; Aruba InstanCVE-2021-377369.8A remote authentication bypass vulnerability was discovered in Aruba ClearPass Policy Manager version(s): ClearPass Policy Manager 6.10.x prCVE-2021-377378.8A remote SQL injection vulnerability was discovered in Aruba ClearPass Policy Manager version(s): ClearPass Policy Manager 6.10.x prior to 6CVE-2021-377387.5A remote disclosure of sensitive information vulnerability was discovered in Aruba ClearPass Policy Manager version(s): ClearPass Policy ManCVE-2021-377397.2A remote arbitrary command execution vulnerability was discovered in Aruba ClearPass Policy Manager version(s): ClearPass Policy Manager 6.1CVE-2021-37746.5Meross Smart Wi-Fi 2 Way Wall Switch (MSS550X), on its 3.1.3 version and before, creates an open Wi-Fi Access Point without the required secCVE-2021-377407.5A denial of service vulnerability exists in MDT's firmware for the KNXnet/IP Secure router SCN-IP100.03 and KNX IP interface SCN-IP000.03 be
CVE-2021-3773: Critical severity, CVSS 9.8 | Vulnix