Vulnerability intelligence
CVE-2026-81578
An improper access control vulnerability exists in the web management interface of PaperCut MF and PaperCut NG. Under specific conditions, unauthenticated remote requests targeting administrative functions can trigger backend actions prior to the completion of access validation checks. This allows an unauthenticated remote attacker to modify certain system configurations.
CVSS Score
—
High
EPSS — Exploit Probability
0.0%
Riskier than 0% of all CVEs
Exploitation
Not in CISA KEV
No federal exploitation record
Remediation
unknown
Check vendor advisories
1 article across 1 outlet · first covered Aug 28, 2026 · latest Aug 28, 2026
Tracked incidents
Coverage timeline
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PaperCut NG/MF Critical Zero-Day Exploited in the Wildwww.rapid7.com · Aug 28, 2026