CISA 2026-08-31

CISA KEV — PaperCut NG/MF (CVE-2026-81578) +1 more

Machine-generated analysis · WAYSCloud LLM

PaperCut NG/MF is listed with two KEV vulnerabilities (CVE-2026-81578 and CVE-2026-82078).

Context

The advisory identifies PaperCut NG/MF as the affected product. It adds CVE-2026-81578 (missing authentication for a critical function) and CVE-2026-82078 (unsafe reflection) to the KEV Catalog, citing evidence of active exploitation. The advisory notes that BOD 26-04 directs agencies to prioritize rapid remediation of KEV items on publicly exposed assets.

Operator considerations

Check: inventory PaperCut NG/MF installations and verify versions against vendor advisories.
Isolate: restrict network access to PaperCut NG/MF instances that are publicly reachable until remediation.
Log: monitor for authentication bypass or reflection-related error events in PaperCut logs.

From Cybersecurity and Infrastructure Security Agency ↗

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

CVE-2026-81578 PaperCut NG/MF Missing Authentication for Critical Function Vulnerability

CVE-2026-82078 PaperCut NG/MF Unsafe Reflection Vulnerability

These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise.

Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian Executive Branch (FCEB) agencies. BOD 26-04 reinforces the importance of the KEV Catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s KEV Catalog on publicly expo...

Read the full advisory on CISA →