CVE-2021-25633
Content Manipulation with Double Certificate Attack
02 Description
Content Manipulation with Double Certificate Attack
03 Exploitation and scoring
- 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
- 0.73% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 53.8% 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
- 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.
04 Metadata
- Published
- 2021-10-11 16:43Z5 YR AGO
- Last updated
- 2024-09-16 18:28Z2 YR AGO
- Reserved
- 2021-01-19
- Assigning CNA
- Document Fdn.
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-295Improper Certificate ValidationBase
- Data version
- 5.1
- Document digest
- c15f4e20e46342952fc4fd764a769c555bf0e2d38698176d34671769a17dd740
05 Affected products
06 References
- www.libreoffice.orghttps://www.libreoffice.org/about-us/security/advisories/CVE-2021-25633
- www.debian.orgDSA-4988https://www.debian.org/security/2021/dsa-4988
07 Remediation
Update to 7.0.6 or 7.1.2 or 7.2.0
08 Fixed in
AlmaLinux 8
- autocorr-af Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-bg Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-ca Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-cs Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-da Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-de Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-en Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-es Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-fa Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-fi Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-fr Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-ga Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-hr Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-hu Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-is Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-it Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-ja Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-ko Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-lb Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-lt Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-mn Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-nl Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-pl Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-pt Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-ro Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-ru Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-sk Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-sl Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-sr Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-sv Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-tr Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-vi Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-zh Fixed in 1:6.4.7.2-10.el8.alma
- libreoffice-base Fixed in 1:6.4.7.2-10.el8.alma
- libreoffice-calc Fixed in 1:6.4.7.2-10.el8.alma
- libreoffice-core Fixed in 1:6.4.7.2-10.el8.alma
- libreoffice-data Fixed in 1:6.4.7.2-10.el8.alma
- libreoffice-draw Fixed in 1:6.4.7.2-10.el8.alma
- libreoffice-emailmerge Fixed in 1:6.4.7.2-10.el8.alma
- libreoffice-filters Fixed in 1:6.4.7.2-10.el8.alma
131 further packages in AlmaLinux 8 not shown (first 40 listed).
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- autocorr-af Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-bg Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-ca Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-cs Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-da Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-de Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-en Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-es Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-fa Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-fi Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-fr Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-ga Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-hr Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-hu Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-is Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-it Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-ja Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-ko Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-lb Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-lt Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-mn Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-nl Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-pl Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-pt Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-ro Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-ru Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-sk Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-sl Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-sr Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-sv Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-tr Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-vi Fixed in 1:6.4.7.2-10.el8.alma
- autocorr-zh Fixed in 1:6.4.7.2-10.el8.alma
- libreoffice-base Fixed in 1:6.4.7.2-10.el8.alma
- libreoffice-calc Fixed in 1:6.4.7.2-10.el8.alma
- libreoffice-core Fixed in 1:6.4.7.2-10.el8.alma
- libreoffice-data Fixed in 1:6.4.7.2-10.el8.alma
- libreoffice-draw Fixed in 1:6.4.7.2-10.el8.alma
- libreoffice-emailmerge Fixed in 1:6.4.7.2-10.el8.alma
- libreoffice-filters Fixed in 1:6.4.7.2-10.el8.alma
131 further packages in CloudLinux 8 not shown (first 40 listed).
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- libreoffice Fixed in 1:7.2.0-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- libreoffice Fixed in 1:7.2.0-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- libreoffice Fixed in 1:7.2.0-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- libreoffice Fixed in 1:6.4.7-0ubuntu0.20.04.2
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.