What’s Vulnerable › Vulnerabilities

CVE-2025-64524: CUPS rastertopclx Filter Vulnerable to Heap Buffer Overflow Leading to Potential Arbitrary Code Execution

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-11-20 · updated 2026-10-18
• Weakness: CWE-122

Description

cups-filters contains backends, filters, and other software required to get the cups printing service working on operating systems other than macos. In versions 2.0.1 and prior, a heap-buffer-overflow vulnerability in the rastertopclx filter causes the program to crash with a segmentation fault when processing maliciously crafted input data. This issue can be exploited to trigger memory corruption, potentially leading to arbitrary code execution. This issue has been patched via commit 956283c.

Affected products

• OpenPrinting cups-filters: through 2.0.1

References

• https://github.com/OpenPrinting/cups-filters/commit/956283c74a34ae924266a2a63f8e5f529a1abd06
• https://github.com/OpenPrinting/cups-filters/security/advisories/GHSA-rq44-2q5p-x3hv
• http://www.openwall.com/lists/oss-security/2025/11/20/1
• https://github.com/OpenPrinting/cups-filters/security/advisories/GHSA-rq44-2q5p-x3hv

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