Pillow: Heap over-read in WMF/EMF rendering via 16-bit dimension truncation (Windows builds)

Summary On Windows builds, Pillow stores EMF and WMF image dimensions without a range check and passes them to the native drawwmf handler. That code sizes its allocation from dimensions truncated into 16-bit header fields but copies the result using the full 32-bit dimensions. A crafted metafile...

CVE-2026-96644

A flaw was found in Pillow. When processing Windows Metafile WMF or Enhanced Metafile EMF images on Windows systems, the image parser improperly handles dimension values, allocating an undersized buffer while reading full dimensions. A remote attacker could exploit this vulnerability by enticing ...

CVE-2026-96644 Pillow: Heap over-read in WMF/EMF rendering via 16-bit dimension truncation (Windows builds)

Pillow is a Python imaging library. Prior to 13.0.0 on Windows, src/PIL/WmfImagePlugin.py passes unchecked 32-bit WMF or EMF dimensions to the native drawwmf handler in src/display.c. The handler sizes a DIB allocation from 16-bit-truncated bcWidth and bcHeight fields but copies pixel data using...

CVE-2026-96644 Pillow: Heap over-read in WMF/EMF rendering via 16-bit dimension truncation (Windows builds)

Pillow is a Python imaging library. Prior to 13.0.0 on Windows, src/PIL/WmfImagePlugin.py passes unchecked 32-bit WMF or EMF dimensions to the native drawwmf handler in src/display.c. The handler sizes a DIB allocation from 16-bit-truncated bcWidth and bcHeight fields but copies pixel data using...

CVE-2026-96644

The Pillow Python imaging library is vulnerable to a heap over-read on Windows systems prior to version 13.0.0 . The issue occurs because src/PIL/WmfImagePlugin.py passes unchecked 32-bit WMF or EMF dimensions to the native drawwmf handler in src/display.c. This handler incorrectly sizes a DIB al...

Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS : LibreOffice vulnerabilities (USN-8868-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8868-1 advisory. It was discovered that LibreOffice incorrectly handled WMF image imports. An attacker could possibly use this issue to cause...

USN-8868-1 libreoffice vulnerabilities

It was discovered that LibreOffice incorrectly handled WMF image imports. An attacker could possibly use this issue to cause LibreOffice to crash, resulting in a denial of service, or execute arbitrary code. CVE-2026-63272 It was discovered that LibreOffice incorrectly handled PDF document import...

USN-8868-1: LibreOffice vulnerabilities

It was discovered that LibreOffice incorrectly handled WMF image imports. An attacker could possibly use this issue to cause LibreOffice to crash, resulting in a denial of service, or execute arbitrary code. CVE-2026-63272 It was discovered that LibreOffice incorrectly handled PDF document import...

ANT-2026-CRFDC4JM · LibreOffice/core · Heap buffer overflow

heap-buffer-overflow medium CVE-2026-63272 Severity Claude high · Security research firm high · Maintainer medium Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Ada Logics. ANT-2026-CRFDC4JM: WMF Unicode-escape te...

LibreOffice < 26.2.5 Multiple Vulnerabilities

The version of LibreOffice installed on the remote host is prior to 26.2.5. It is, therefore, affected by multiple vulnerabilities: - 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...

CVE-2026-63272

A flaw was found in LibreOffice. When processing embedded Windows Metafile WMF graphics, a heap buffer overflow can occur during the import of text records. This vulnerability arises because the application reads the character advance values and text length independently, which can lead to a...

SUSE CVE-2026-63272

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...

Linux Distros Unpatched Vulnerability : CVE-2026-63272

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

DEBIAN-CVE-2026-63272

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-2026-63272

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-2026-63272

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...

UBUNTU-CVE-2026-63272

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-2026-63272 Heap buffer overflow in WMF text record import

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...

EUVD-2026-84352

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-2026-63272

LibreOffice is affected by a heap buffer overflow in its WMF text record import functionality. When a WMF text record carries its own character advance widths, the count of advance values and the text length are read independently from the file with no validation that they agree. During rendering...