CVE-2020-12823
CVSS v3
9.8
CRITICAL
EPSS Score
4.7 %
exploit probability, as of 2026-10-19
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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Affected and fixed versions
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
- CVE-2020-12823 Red Hat Product Security
openconnect: buffer overflow via crafted certificate data to get_cert_name function in gnutls.c
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.
Technical details
- Published
- 2020-05-12
Frequently asked questions
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