CVE-2021-41559

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

1.03% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 61.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2022-06-28 21:27Z4 YR AGO

Last updated

2024-08-04 03:15Z2 YR AGO

Reserved

2021-09-22

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-776Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')Base

Data version

5.1

Document digest

023dd470ce3a2394534725b34baf97d2f2f708f697ce3ccd2a87311505ad2e0f

• www.silverstripe.orghttps://www.silverstripe.org/download/security-releases/x_refsource_MISC
• github.comhttps://github.com/silverstripe/silverstripe-framework/releasesx_refsource_MISC
• www.silverstripe.orghttps://www.silverstripe.org/download/security-releases/cve-2021-41559x_refsource_MISC