CVE-2021-41800

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

1.81% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 76.6% of scored records. A rank, not a probability.

NVD base score

5.3 (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:N/I:N/A:L

NVD analysis status

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

Red Hat severity

Moderate. 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

2021-10-11 00:00Z4 YR AGO

Last updated

2024-08-04 03:22Z2 YR AGO

Reserved

2021-09-29

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-770Allocation of Resources Without Limits or ThrottlingBase
• CWE-400Uncontrolled Resource ConsumptionClass

Data version

5.1

Document digest

a3ae5fa5c2be28f720913e1748fda296d21f00a63fbba875dfe8997f56d37bc4

• phabricator.wikimedia.orghttps://phabricator.wikimedia.org/T284419
• lists.wikimedia.orghttps://lists.wikimedia.org/hyperkitty/list/wikitech-l%40lists.wikimedia.org/thread/2IFS5CM2YV4VMSODPX3J2LFHKSEWVFV5/
• github.comhttps://github.com/wikimedia/mediawiki/commit/781caf83dba90c18349f930bbaaa0e89f003f874
• lists.fedoraproject.orgFEDORA-2021-eee8b7514fhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QNEAI2T3Y65I55ZB6UE6RMC662RZTGRX/vendor-advisory
• lists.fedoraproject.orgFEDORA-2021-56d8173b5ehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CJDYJQWT43GBD6GNQ4OW7JOZ6WQ6DZTN/vendor-advisory
• lists.fedoraproject.orgFEDORA-2021-3dd1b66cbfhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MDBPECBWN6LWNSWIQMVXK6PP4YFEUYHA/vendor-advisory
• security.gentoo.orgGLSA-202305-24https://security.gentoo.org/glsa/202305-24vendor-advisory