CVE-2021-41165

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

1.57% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 74.9% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

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

2021-11-17 19:15Z4 YR AGO

Last updated

2024-08-04 02:59Z2 YR AGO

Reserved

2021-09-15

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 8.2)

CNA CVSS vector

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

Weaknesses

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base

Data version

5.1

Document digest

aea6b9a859ba57952619618f041e69c13b07741e793f5adbe931b27eef968263

• github.comhttps://github.com/ckeditor/ckeditor4/blob/major/CHANGES.md#ckeditor-417x_refsource_MISC
• github.comhttps://github.com/ckeditor/ckeditor4/security/advisories/GHSA-7h26-63m7-qhf2x_refsource_CONFIRM
• www.oracle.comhttps://www.oracle.com/security-alerts/cpujan2022.htmlx_refsource_MISC
• www.drupal.orghttps://www.drupal.org/sa-core-2021-011x_refsource_CONFIRM
• www.oracle.comhttps://www.oracle.com/security-alerts/cpuapr2022.htmlx_refsource_MISC
• www.oracle.comhttps://www.oracle.com/security-alerts/cpujul2022.htmlx_refsource_MISC