Quick answers
- Is CVE-2026-6645 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-6645 being exploited in the wild.
- How severe is CVE-2026-6645?
- Informational severity, with a CVSS score of 7.3, published 22 June 2026.
- Which products and versions are affected?
- PaperCut Print Deploy < 1.10.4178.
- Is there a fix for CVE-2026-6645?
- 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.
- How is CVE-2026-6645 attacked?
- It is attacked with local access, in a network appliance.
- Am I affected by CVE-2026-6645?
- Check whether you run PaperCut Print Deploy at an affected version. 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.
Technical details
An uncontrolled search path vulnerability (CWE-427) exists in the pc-printer-updater.exe component of PaperCut Print Deploy Client for Windows. The application attempts to execute a secondary system utility using an unqualified file reference rather than an absolute path. This behavior allows a local attacker with write access to a directory in the system's search path to plant a malicious executable with the same name as the expected utility. When the updater runs with SYSTEM privileges, it may execute the attacker's binary, leading to full host compromise. This issue is resolved in version 1.10.4178.
Affected products
- PaperCut Print Deploy < 1.10.4178
Timeline
- 2026-06-22: disclosed
- 2026-06-22: advisory