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Paper/Archive/CVE-2021-3773

CVE-2021-3773

redhat — A flaw in netfilter could allow a network-connected attacker to infer openvpn connection endpoint information for further use in traditio…

EPSS 5%CVSS 9.8
critical.is priorityof 100
48
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 92.6.926 × 2018.5No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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

Affected

ProductAffectedFixed inSource
kernelkernel 5.14.0-49.el9, kernel 5.15.15-100.fc34, kernel 5.15.15-200.fc35–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refbugzilla.redhat.com/show_bug.cgi?id=2004949reforacle.com/security-alerts/cpujul2022.htmlrefcitizenlab.ca/2024/07/vulnerabilities-in-vpns-paper-presented-at-the-privacy-enhancing-technologies-symposium-2024refsecurity.netapp.com/advisory/ntap-20250328-0004