USN-8534-1: LibreOffice vulnerabilities | Ubuntu security notices

USN-8493-1: Linux kernel vulnerabilities | Ubuntu security notices

It was discovered that LibreOffice incorrectly handled importing DXF
drawings. An attacker could use this issue to cause LibreOffice to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2026-6039)

It was discovered that LibreOffice incorrectly handled certain ODF number
formats. An attacker could use this issue to cause LibreOffice to crash,
resulting in a denial of service, or possibly execute arbitrary code. This
issue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-6040)

It was discovered that LibreOffice incorrectly handled importing EMF+
graphics. An attacker could use this issue to cause LibreOffice to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2026-6045)

It was discovered that LibreOffice incorrectly handled importing…

It was discovered that LibreOffice incorrectly handled importing DXF
drawings. An attacker could use this issue to cause LibreOffice to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2026-6039)

It was discovered that LibreOffice incorrectly handled certain ODF number
formats. An attacker could use this issue to cause LibreOffice to crash,
resulting in a denial of service, or possibly execute arbitrary code. This
issue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-6040)

It was discovered that LibreOffice incorrectly handled importing EMF+
graphics. An attacker could use this issue to cause LibreOffice to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2026-6045)

It was discovered that LibreOffice incorrectly handled importing PPT
presentations. An attacker could use this issue to cause LibreOffice to
crash, resulting in a denial of service, or possibly execute arbitrary
code. (CVE-2026-8356)

It was discovered that LibreOffice Calc incorrectly handled compiling
certain formulas. An attacker could use this issue to cause LibreOffice to
crash, resulting in a denial of service, or possily execute arbitrary code.
(CVE-2026-8357)

It was discovered that LibreOffice Calc incorrectly handled importing
spreadsheet tracked changes. An attacker could use this issue to cause
LibreOffice to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2026-8358)

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