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CVE-2021-25634

libreoffice: Timestamp Manipulation with Signature Wrapping

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Severity

Moderate

Red Hat Product Security

7.1

CVSS 3.1

Review impact separately from score.

Published · October 11, 2021

Updated · November 22, 2025

Description

A flaw was found in LibreOffice, where it inserted a signing timestamp. This flaw allows LibreOffice to present a valid signature due to the altered signing time. The highest threat from this vulnerability is to confidentiality and integrity.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

CWE-295 · Improper Certificate Validation