CVE-2020-12823

PoC —

CVSS 3.1

9.8 critical

EPSS

5%p91

Published

May 12, 2020 (May 12, 2020)

Modified

Jun 17, 2026

Description

OpenConnect 8.09 has a buffer overflow, causing a denial of service (application crash) or possibly unspecified other impact, via crafted certificate data to get_cert_name in gnutls.c.

Vendors: infradead fedoraproject debian opensuse
Products: openconnect, fedora, debian linux, leap
Weakness: CWE-120
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (4.6%)

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