CVE-2021-41830

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

1.39% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 72.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2021-10-11 08:10Z5 YR AGO

Last updated

2024-08-04 03:22Z2 YR AGO

Reserved

2021-09-30

Assigning CNA

apache

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-347Improper Verification of Cryptographic SignatureBase

Data version

5.1

Document digest

995c44c5ef4e738532bd9c3ae489c530d2d26120f95ef822417b1d5faf86c399

• lists.apache.orghttps://lists.apache.org/thread.html/r97d287c88881aa581f1b18cb01e2cbedc4e6eae85958491acb89b12e%40%3Cusers.openoffice.apache.org%3Ex_refsource_MISC
• lists.apache.org[announce] 20211010 CVE-2021-41830: Apache OpenOffice: Double Certificate Attackhttps://lists.apache.org/thread.html/raaab8a3b91f8d7b7ba14f873b8d0fd13952c823acc3385b7a374e754%40%3Cannounce.apache.org%3Emailing-listx_refsource_MLIST