# CVE-2025-57812: CUPS is a standards-based, open-source printing system, and `libcupsfilters` contains the code of the filters of the…

Source: https://junglewise.ai/threats/cve-2025-57812-cups-is-a-standards-based-open-source-printing-system-and  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-11-12  
License: CC BY 4.0 with a link back

CVE-2025-57812 · Severity: low · CVSS 3.7 · Published 2025-11-12

CUPS is a standards-based, open-source printing system, and `libcupsfilters` contains the code of the filters of the former `cups-filters` package as library functions to be used for the data format conversion tasks needed in Printer Applications. In CUPS-Filters versions up to and including 1.28.17 and libscupsfilters versions 2.0.0 through 2.1.1, CUPS-Filters's `imagetoraster` filter has an out of bounds read/write vulnerability in the processing of TIFF image files.  While the pixel buffer is allocated with the number of pixels times a pre-calculated bytes-per-pixel value, the function which processes these pixels is called with a size of the number of pixels times 3.  When suitable inputs are passed, the bytes-per-pixel value can be set to 1 and bytes outside of the buffer bounds get processed. In order to trigger the bug, an attacker must issue a print job with a crafted TIFF file, and pass appropriate print job options to control the bytes-per-pixel value of the output format. They must choose a printer configuration under which the `imagetoraster` filter or its C-function equivalent `cfFilterImageToRaster()` gets invoked. The vulnerability exists in both CUPS-Filters 1.x and the successor library libcupsfilters (CUPS-Filters 2.x). In CUPS-Filters 2.x, the vulnerable function is `_cfImageReadTIFF() in libcupsfilters`. When this function is invoked as part of `cfFilterImageToRaster()`, the caller passes a look-up-table during whose processing the out of bounds memory access happens. In CUPS-Filters 1.x, the equivalent functions are all found in the cups-filters repository, which is not split into subprojects yet, and the vulnerable code is in `_cupsImageReadTIFF()`, which is called through `cupsImageOpen()` from the `imagetoraster` tool. A patch is available in commit b69dfacec7f176281782e2f7ac44f04bf9633cfa.

Technologies: [OpenPrinting Cups-Filters](https://junglewise.ai/threats/technologies/cups-filters), [OpenPrinting Libcupsfilters](https://junglewise.ai/threats/technologies/libcupsfilters). Vendors: [OpenPrinting](https://junglewise.ai/threats/vendors/openprinting).

## Quick answers

**Is CVE-2025-57812 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-57812 being exploited in the wild.

**How severe is CVE-2025-57812?** Low severity, with a CVSS score of 3.7, published 12 November 2025.

**Which products and versions are affected?** OpenPrinting Cups-Filters, OpenPrinting Libcupsfilters. The advisory does not name versions.

**Is there a fix for CVE-2025-57812?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2025-57812?** Check whether you run OpenPrinting Cups-Filters or OpenPrinting Libcupsfilters. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- OpenPrinting Cups-Filters
- OpenPrinting Libcupsfilters

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