CVE-2026-63273
Fixed in a distro release EPSS <1%CVSS 5.4
LibreOffice Draw can import PDF documents. A heap buffer overflow existed when importing an encrypted document. The length of the decryption key was taken from the document's own encryption dictionary and was used to fill a fixed size key buffer without being checked against it, so a length larger than that buffer wrote past its end. In fixed versions a declared key length larger than the buffer is rejected.
Products: The Document Foundation LibreOffice
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | libreoffice | no fix |
| Debian 13 | libreoffice | 4:25.2.3-2+deb13u7 |
| Debian 14 | libreoffice | 4:26.2.5.2-1 |
| Ubuntu 20.04 LTS | libreoffice | no fix |
| Ubuntu 22.04 LTS | libreoffice | 1:7.3.7-0ubuntu0.22.04.13 |
| Ubuntu 24.04 LTS | libreoffice | 4:24.2.7-0ubuntu0.24.04.7 |
| Ubuntu 26.04 LTS | libreoffice | 4:26.2.6.3-0ubuntu0.26.04.2 |