CVE-2020-28636

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

2.88% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 85.6% 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

2021-03-04 00:00Z5 YR AGO

Last updated

2025-04-23 19:44Z1 YR AGO

Reserved

2020-11-13

Assigning CNA

talos

Record state

PUBLISHED

Severity

Critical (CVSS 10.0)

CNA CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Weaknesses

• CWE-129Improper Validation of Array IndexVariant
• CWE-125Out-of-bounds ReadBase

Data version

5.1

Document digest

c05dcf4c82ebf172a7cbe57effe63981ff28842951088dd14415f6991f6ac3a6

• talosintelligence.comhttps://talosintelligence.com/vulnerability_reports/TALOS-2020-1225
• lists.fedoraproject.orgFEDORA-2021-0d42c7cb33https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E4J344OKKDLPRN422OYRR46HDEN6MM6P/vendor-advisory
• lists.fedoraproject.orgFEDORA-2021-9de542ab4chttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NB5SF5OJR2DSV7CC6U7FVW5VJSJO5EKV/vendor-advisory
• lists.debian.org[debian-lts-announce] 20210505 [SECURITY] [DLA 2649-1] cgal security updatehttps://lists.debian.org/debian-lts-announce/2021/05/msg00002.htmlmailing-list
• lists.debian.org[debian-lts-announce] 20221206 [SECURITY] [DLA 3226-1] cgal security updatehttps://lists.debian.org/debian-lts-announce/2022/12/msg00011.htmlmailing-list
• security.gentoo.orgGLSA-202305-34https://security.gentoo.org/glsa/202305-34vendor-advisory