PT-2026-96705

Name of the Vulnerable Software and Affected Versions LibreOffice affected versions not specified Description A stack buffer overflow occurs during the conversion of CFF fonts to Type 1 fonts, a process that takes place when a document is exported to PDF and CFF fonts are embedded. The issue aris...

PT-2026-96702

Name of the Vulnerable Software and Affected Versions LibreOffice Draw affected versions not specified Description A heap buffer overflow occurs during the import of encrypted PDF documents. The issue arises because the software uses the decryption key length specified in the document's encryptio...

PT-2026-96701

Name of the Vulnerable Software and Affected Versions LibreOffice affected versions not specified Description An issue exists when importing WMF Windows Metafile graphics embedded in documents. A heap buffer overflow occurs during the import of a text record that includes its own character advanc...

CVE-2026-63273: Out-of-bounds Write

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 large...

CVE-2026-63274: Out-of-bounds Write

LibreOffice Draw can import PDF documents. A heap buffer overflow existed when importing a stream object. The length of the stream was taken from the object's own dictionary and was not checked against the number of bytes actually present, so copying the stream read and wrote past the end of the...

PT-2026-96703

Name of the Vulnerable Software and Affected Versions LibreOffice Draw affected versions not specified Description An issue exists when importing PDF documents where a heap buffer overflow occurs during the processing of a stream object. The software uses the stream length specified in the object...

CVE-2026-63272: Out-of-bounds Write

LibreOffice can import WMF graphics, which may be embedded in documents. A heap buffer overflow existed when importing a text record that carries its own character advance widths. The count of advance values and the length of the text were read separately from the file and were not required to...

CVE-2026-63279: Out-of-bounds Read

LibreOffice can import PICT images, which may be embedded in documents. An out of bounds read existed when importing an image that uses a colour palette. The palette index held in the image data was used without being checked against the number of entries the palette has, so an index past the las...

PT-2026-96704

Name of the Vulnerable Software and Affected Versions LibreOffice affected versions not specified Description An issue exists when reading CFF Compact Font Format fonts that may be embedded in documents. A stack buffer overflow occurs during the processing of glyph hints because the number of hin...

Astra Linux – Vulnerability in LibreOffice

Improper limitation of a pathname to a restricted directory “Path Traversal” vulnerability in The Document Foundation LibreOffice allows for absolute path traversal. An attacker can write to arbitrary locations, even those prefixed with “.ttf”, by providing a file in a format that supports embedd...

Astra Linux – Vulnerability in LibreOffice

The Document Foundation LibreOffice has a vulnerability where environmental variables and arbitrary INI file values may be exposed to unauthorized actors. URLs can be created that expand environmental variables or INI file values, allowing potentially sensitive information to be exfiltrated to a...

Astra Linux – Vulnerability in LibreOffice

There was an improper certificate validation vulnerability in LibreOffice, where the determination of whether a macro was signed by a trusted author was based solely on comparing the serial number and issuer string of the used certificate with those of a trusted certificate. This is insufficient ...

Astra Linux – Vulnerability in LibreOffice

LibreOffice supports the storage of passwords for web connections in the user’s configuration database. The stored passwords are encrypted using a single master key provided by the user. There was a flaw in LibreOffice where the required initialization vector for encryption was always the same,...

Astra Linux – Vulnerability in LibreOffice

LibreOffice supports the storage of passwords for web connections in the user’s configuration database. The stored passwords are encrypted using a single master key provided by the user. There was a flaw in LibreOffice where the master key was poorly encoded, resulting in a reduction in its entro...

Astra Linux – Vulnerability in LibreOffice

A vulnerability in certificate validation in LibreOffice’s “LibreOfficeKit” mode disables TLS certificate verification. LibreOfficeKit can be used to access LibreOffice functionality through C/C++. Typically, this is used by third-party components to reuse LibreOffice as a library for converting,...

Astra Linux – Vulnerability in LibreOffice

A out-of-bounds write vulnerability exists in The Document Foundation LibreOffice due to crafted OOXML documents with mismatched encryption salt parameters. This issue affects LibreOffice versions starting from 26.2 before 26.2.3, and also versions starting from 25.8 before 25.8.7...

Astra Linux – Vulnerability in LibreOffice

LibreOffice supports Office URI Schemes to enable browser integration of LibreOffice with MS SharePoint servers. An additional scheme ‘vnd.libreoffice.command’ specific to LibreOffice was added. In the affected versions of LibreOffice, links using this scheme could be used to invoke internal macr...

Astra Linux – Vulnerability in LibreOffice

LibreOffice supports Office URI Schemes to enable browser integration of LibreOffice with MS SharePoint servers. An additional scheme ‘vnd.libreoffice.command’ specific to LibreOffice was added. In the affected versions of LibreOffice, a link in a browser using that scheme could contain an embedd...

Astra Linux – Vulnerability in LibreOffice

Improper validation of the array index vulnerability in The Document Foundation LibreOffice’s spreadsheet component allows an attacker to create a spreadsheet document that causes an array index underflow upon loading. In the affected versions of LibreOffice, certain malformed spreadsheet formula...

Astra Linux – Vulnerability in LibreOffice

The Certificate Validation user interface in LibreOffice may contain potential vulnerabilities. Signed macros are scripts that have been digitally signed by the developer using a cryptographic signature. When a document containing a signed macro is opened, LibreOffice displays a warning before th...