Integer Underflow (Wrap or Wraparound) Affecting OpenPrinting/cups package, versions [0, 2.4.17)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-OPENPRINTINGCUPS-16007268
- published13 Apr 2026
- disclosed7 Apr 2026
- creditTomer-PL
Introduced: 7 Apr 2026
CVE-2026-39314 (opens in a new tab)How to fix?
Upgrade OpenPrinting/cups to version 2.4.17 or higher.
Overview
Affected versions of this package are vulnerable to Integer Underflow (Wrap or Wraparound) via the _ppdCreateFromIPP function. An attacker can cause the root cupsd process to crash by supplying a negative value for the job-password-supported attribute, which bypasses bounds checking and results in an integer underflow. This value is then cast to an unsigned type and used as the length argument to memset on a fixed-size stack buffer, leading to a segmentation fault and process termination. This can be exploited repeatedly to cause sustained service disruption.