CVE-2020-12823

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

4.62% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 90.9% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2020-05-12 17:07Z6 YR AGO

Last updated

2024-08-04 12:04Z2 YR AGO

Reserved

2020-05-12

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base

Data version

5.1

Document digest

2e6164c7c4d8ec2ea1f22a11bd2818be51a2b4a4cbcd74cbaca1af71906e2361

• gitlab.comhttps://gitlab.com/openconnect/openconnect/-/merge_requests/108x_refsource_MISC
• bugs.gentoo.orghttps://bugs.gentoo.org/721570x_refsource_MISC
• lists.debian.org[debian-lts-announce] 20200516 [SECURITY] [DLA 2212-1] openconnect security updatehttps://lists.debian.org/debian-lts-announce/2020/05/msg00015.htmlmailing-listx_refsource_MLIST
• lists.fedoraproject.orgFEDORA-2020-143735a624https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AYSXLXAPXD2T73T6JMHI5G2WP7KHAGMN/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2020-2af15c566ehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEVTIH5UFX35CC7MVSYBGRM3D66ACFD5/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2020-bc22f06aa3https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/25MFX4AZE7RDCUWOL4ZOE73YBOPUMQDX/vendor-advisoryx_refsource_FEDORA
• security.gentoo.orgGLSA-202006-15https://security.gentoo.org/glsa/202006-15vendor-advisoryx_refsource_GENTOO
• lists.opensuse.orgopenSUSE-SU-2020:0997http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00039.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgopenSUSE-SU-2020:1027http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00056.htmlvendor-advisoryx_refsource_SUSE