What’s Vulnerable › Vulnerabilities

CVE-2025-61915: OpenPrinting CUPS vulnerable to stack based out-of-bound write

• Severity: medium (CVSS 6.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-11-29 · updated 2026-10-07
• Weakness: CWE-124

Description

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Prior to version 2.4.15, a user in the lpadmin group can use the cups web ui to change the config and insert a malicious line. Then the cupsd process which runs as root will parse the new config and cause an out-of-bound write. This issue has been patched in version 2.4.15.

Affected products

• OpenPrinting cups: before 2.4.15 — fixed in 2.4.15

How to fix

Upgrade to a fixed version: OpenPrinting cups 2.4.15. Check the vendor advisory for mitigations.

References

• https://github.com/OpenPrinting/cups/commit/db8d560262c22a21ee1e55dfd62fa98d9359bcb0
• https://github.com/OpenPrinting/cups/releases/tag/v2.4.15
• https://github.com/OpenPrinting/cups/security/advisories/GHSA-hxm8-vfpq-jrfc
• http://www.openwall.com/lists/oss-security/2025/11/27/5
• https://github.com/OpenPrinting/cups/security/advisories/GHSA-hxm8-vfpq-jrfc

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