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Cups Filters CVE-2025-64503

MEDIUM
Out-of-bounds Write (CWE-787)
2025-11-12 security-advisories@github.com
4.0
CVSS 3.1 · GitHub Advisory
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Severity by source

GitHub Advisory PRIMARY
4.0 MEDIUM
AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SUSE
3.3 LOW
AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Red Hat
4.0 MEDIUM
qualitative

Primary rating from GitHub Advisory.

CVSS VectorGitHub Advisory

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

Lifecycle Timeline

4
Analysis Generated
Mar 28, 2026 - 19:21 vuln.today
Patch released
Mar 28, 2026 - 19:21 nvd
Patch available
PoC Detected
Jan 20, 2026 - 18:12 vuln.today
Public exploit code
CVE Published
Nov 12, 2025 - 22:15 nvd
MEDIUM 4.0

DescriptionGitHub Advisory

cups-filters contains backends, filters, and other software required to get the cups printing service working on operating systems other than macos. In cups-filters prior to 1.28.18, by crafting a PDF file with a large MediaBox value, an attacker can cause CUPS-Filter 1.x’s pdftoraster tool to write beyond the bounds of an array. First, a PDF with a large MediaBox width value causes header.cupsWidth to become large. Next, the calculation of bytesPerLine = (header.cupsBitsPerPixel * header.cupsWidth + 7) / 8 overflows, resulting in a small value. Then, lineBuf is allocated with the small bytesPerLine size. Finally, convertLineChunked calls writePixel8, which attempts to write to lineBuf outside of its buffer size (out of bounds write). In libcupsfilters, the maintainers found the same bytesPerLine multiplication without overflow check, but the provided test case does not cause an overflow there, because the values are different. Commit 50d94ca0f2fa6177613c97c59791bde568631865 contains a patch, which is incorporated into cups-filters version 1.28.18.

AnalysisAI

cups-filters contains backends, filters, and other software required to get the cups printing service working on operating systems other than macos. Rated medium severity (CVSS 4.0), this vulnerability is no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. cups-filters contains backends, filters, and other software required to get the cups printing service working on operating systems other than macos. In cups-filters prior to 1.28.18, by crafting a PDF file with a large MediaBox value, an attacker can cause CUPS-Filter 1.x’s pdftoraster tool to write beyond the bounds of an array. First, a PDF with a large MediaBox width value causes header.cupsWidth to become large. Next, the calculation of bytesPerLine = (header.cupsBitsPerPixel * header.cupsWidth + 7) / 8 overflows, resulting in a small value. Then, lineBuf is allocated with the small bytesPerLine size. Finally, convertLineChunked calls writePixel8, which attempts to write to lineBuf outside of its buffer size (out of bounds write). In libcupsfilters, the maintainers found the same bytesPerLine multiplication without overflow check, but the provided test case does not cause an overflow there, because the values are different. Commit 50d94ca0f2fa6177613c97c59791bde568631865 contains a patch, which is incorporated into cups-filters version 1.28.18. Affected products include: Openprinting Cups-Filters, Openprinting Libcupsfilters. Version information: prior to 1.28.18.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).

CVE-2015-3258 HIGH
7.5 Jul 14

Heap-based buffer overflow in the WriteProlog function in filter/texttopdf.c in texttopdf in cups-filters before 1.0.70

CVE-2015-3279 HIGH
7.5 Jul 14

Integer overflow in filter/texttopdf.c in texttopdf in cups-filters before 1.0.71 allows remote attackers to cause a den

CVE-2023-24805 HIGH POC
8.8 May 17

cups-filters contains backends, filters, and other software required to get the cups printing service working on operati

CVE-2015-2265 HIGH POC
7.5 Mar 24

The remove_bad_chars function in utils/cups-browsed.c in cups-filters before 1.0.66 allows remote IPP printers to execut

CVE-2015-8327 HIGH
7.5 Dec 17

Incomplete blacklist vulnerability in util.c in foomatic-rip in cups-filters 1.0.42 before 1.2.0 and in foomatic-filters

CVE-2013-6474 MEDIUM
6.8 Mar 14

Heap-based buffer overflow in the pdftoopvp filter in CUPS and cups-filters before 1.0.47 allows remote attackers to exe

CVE-2013-6475 MEDIUM
6.8 Mar 14

Multiple integer overflows in (1) OPVPOutputDev.cxx and (2) oprs/OPVPSplash.cxx in the pdftoopvp filter in CUPS and cups

CVE-2013-6473 MEDIUM
6.8 Mar 14

Multiple heap-based buffer overflows in the urftopdf filter in cups-filters 1.0.25 before 1.0.47 allow remote attackers

CVE-2015-8560 HIGH
7.3 Apr 14

Incomplete blacklist vulnerability in util.c in foomatic-rip in cups-filters 1.0.42 before 1.4.0 and in foomatic-filters

CVE-2014-2707 HIGH
8.3 Apr 17

cups-browsed in cups-filters 1.0.41 before 1.0.51 allows remote IPP printers to execute arbitrary commands via shell met

CVE-2014-4336 MEDIUM
5.8 Jun 22

The generate_local_queue function in utils/cups-browsed.c in cups-browsed in cups-filters before 1.0.53 allows remote IP

CVE-2014-4337 MEDIUM
4.3 Jun 22

The process_browse_data function in utils/cups-browsed.c in cups-browsed in cups-filters before 1.0.53 allows remote att

Vendor StatusVendor

SUSE

Severity: Low
Product Status
SUSE Linux Enterprise Desktop 15 SP6 SUSE Linux Enterprise High Performance Computing 15 SP6 SUSE Linux Enterprise Module for Basesystem 15 SP6 SUSE Linux Enterprise Server 15 SP6 SUSE Linux Enterprise Server for SAP Applications 15 SP6 Fixed
SUSE Linux Enterprise Desktop 15 SP7 SUSE Linux Enterprise High Performance Computing 15 SP7 SUSE Linux Enterprise Module for Basesystem 15 SP7 SUSE Linux Enterprise Server 15 SP7 SUSE Linux Enterprise Server for SAP Applications 15 SP7 Fixed
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 Fixed
openSUSE Leap 15.6 Fixed
SUSE Linux Enterprise Desktop 15 SP7 Fixed

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CVE-2025-64503 vulnerability details – vuln.today

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