CVE-2021-44647

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

0.42% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 34.8% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

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

2022-01-11 00:00Z4 YR AGO

Last updated

2024-08-04 04:25Z2 YR AGO

Reserved

2021-12-06

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-843Access of Resource Using Incompatible Type ('Type Confusion')Base

Data version

5.1

Document digest

62cb938bc04fdc82cf8c4e72da3745766a6b8c25e755ecbc9b309f9ec4b81b52

• lua-users.orghttp://lua-users.org/lists/lua-l/2021-11/msg00195.html
• lua-users.orghttp://lua-users.org/lists/lua-l/2021-11/msg00204.html
• lists.fedoraproject.orgFEDORA-2022-473560d1a6https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P3EMGAQ5Y6GXJLY4K5DUOOEQT4MZ4J4F/vendor-advisory
• access.redhat.comhttps://access.redhat.com/security/cve/cve-2021-44647
• security.gentoo.orgGLSA-202305-23https://security.gentoo.org/glsa/202305-23vendor-advisory