CVE-2026-82077
High
Description
An improper limitation of a pathname to a restricted directory (path traversal) vulnerability in the Scan-to-Fax component of PaperCut NG and PaperCut MF allows an authenticated administrator to execute arbitrary commands on the underlying host via crafted fax provider settings.
SeverityHigh
CVSS7.3
Exploit probability—
Product
PaperCut NG/MF
PublishedSep 24, 2026
First seenSep 24, 2026
Weakness typeCWE-22Path traversalCWE-78OS command injection
How to fix
Update
- PaperCut PaperCut NG/MF24.1.10, 25.0.13, 26.0.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| PaperCut PaperCut NG/MF | v < 24.1.10, 25.0.0 ≤ v < 25.0.13, 26.0.0 ≤ v < 26.0.5 | 24.1.10, 25.0.13, 26.0.5 |
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