Read the docs
TI-2021-18453 Aliases CVE-2021-41830GHSA-7qhr-g3xw-3692

Double Certificate Attack

Priority LOW 36CWE-347Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-347.

Summary

It is possible for an attacker to manipulate signed documents and macros to appear to come from a trusted source. All versions of Apache OpenOffice up to 4.1.10 are affected. Users are advised to update to version 4.1.11. See CVE-2021-25633 for the LibreOffice advisory.

Why it matters now

EPSS 0.0139 72nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache OpenOfficeApache OpenOffice – 4.1.10; OpenOffice.org – 3.4—No fix listedCNA
  • Apache OpenOffice VendorApache Affected Apache OpenOffice – 4.1.10; OpenOffice.org – 3.4 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:openoffice:*:*:*:*:*:*:*:*before 4.1.11VulnerableApache
  • cpe:2.3:a:apache:openoffice:*:*:*:*:*:*:*:* Versions before 4.1.11 Vulnerable ·Apache

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-41830
  2. 2026-10-03 Alias added: GHSA-7qhr-g3xw-3692

References

Advisory 1

Other 1

  • TI-2018-07474 An information disclosure vulnerability occurs when LibreOffice 6.0.3 and Apache… CVSS 3.0HIGH 7.5
  • TI-2021-12639 Buffer overflow from a crafted DBF file CVSS 3.1HIGH 7.8
  • TI-2014-02850 Apache OpenOffice before 4.1.1 allows remote attackers to execute arbitrary commands and… CVSS 2.0HIGH 9.3
  • TI-2009-02810 Heap-based buffer overflow in the GIFLZWDecompressor::GIFLZWDecompressor function in… CVSS 2.0HIGH 9.3
  • TI-2009-02809 Integer overflow in the XPMReader::ReadXPM function in filter.vcl/ixpm/svt_xpmread.cxx in… CVSS 2.0HIGH 9.3
  • TI-2009-03144 filter/ww8/ww8par2.cxx in OpenOffice.org (OOo) before 3.2 allows remote attackers to… CVSS 2.0HIGH 9.3
See all 71 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences