Vulnerability Intelligence Report
CVE-2021-3773
A flaw in netfilter could allow a network-connected attacker to infer openvpn connection endpoint information for further use in traditional network attacks.
No Active Exploit Signals
CVSS Base Score
9.8
CRITICAL
EPSS Probability:5.32%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-200 ↗CWE-200
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| linux | linux_kernel | all |
| fedoraproject | fedora | 34 |
| redhat | enterprise_linux | 6.0, 7.0, 8.0 |
| oracle | communications_cloud_native_core_binding_support_function | 22.1.3 |
| oracle | communications_cloud_native_core_network_exposure_function | 22.1.1 |
| oracle | communications_cloud_native_core_policy | 22.2.0 |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
5.322%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Red Hat, Inc. · Vendor · USA |
| Reserved | 2021-09-06T00:00:00 |
| Published | 2022-02-16T18:35:30 |
| Last Updated | 2025-03-28T15:02:57 |
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