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PaperCut emergency patches for public-facing NG/MF servers

Security Patch Release
First reported
Last updated
Happening score
H score 41
1 unique sources, 1 articles

Summary

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PaperCut released emergency patches for public-facing PaperCut NG/MF servers after warning that the software is under active zero-day exploitation. The patch release gives exposed customers an urgent remediation path while the company continues to recommend access restriction and other mitigation for systems that cannot be patched immediately.

Related Happenings

PaperCut customer confirmed compromise incidents

Incident
H score36 First: 27.08.2026 19:31 Last: 27.08.2026 19:31 Sources 1

How related: We are aware of confirmed customer incidents and are treating this matter with the highest priority.

About this happening: PaperCut customers are facing confirmed compromise incidents tied to actively exploited PaperCut NG and PaperCut MF servers, putting exposed deployments at immedia...

Open Happening

Microsoft SharePoint Server actively exploited multi-CVE wave

Exploitation Wave
H score79 First: 15.07.2026 12:44 Last: 15.07.2026 12:44 Sources 1

About this happening: SharePoint Server exploitation wave remains active across internet-exposed on-premises instances, with CVE-2026-32201, CVE-2026-45659, and CVE-2026-56164 used...

Open Happening

Microsoft March 2026 Patch Tuesday (83 CVEs)

Security Patch Release
H score40 First: 11.03.2026 03:08 Last: 11.03.2026 03:08 Sources 1

About this happening: Microsoft released its March 2026 Patch Tuesday update with 83 CVEs across its product range, reducing exposure to a broad set of flaws that includes issues Microsoft...

Open Happening

Timeline

  1. 27.08.2026 19:31 1 articles · 3h ago

    PaperCut warns of active zero-day exploitation in PaperCut NG and PaperCut MF

    Initial Disclosure

    PaperCut says it is investigating active exploitation of a vulnerability affecting PaperCut NG and PaperCut MF, warns that hackers are using zero-day attacks against all versions, and says it is aware of confirmed customer incidents involving Internet-exposed PaperCut Application Servers.

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  2. 27.08.2026 19:31 2 articles · 3h ago

    PaperCut releases emergency patches for public-facing PaperCut NG/MF servers

    Mitigation Patch Update

    PaperCut releases emergency patches for customers with public-facing PaperCut NG/MF servers and tells administrators who cannot patch immediately to use firewall rules or network access controls to restrict web interfaces to trusted IP addresses.

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  3. 27.08.2026 19:31 1 articles · 3h ago

    PaperCut shares indicators of compromise for suspected server compromise

    Detection Ioc Update

    PaperCut shares indicators of compromise for potentially compromised servers, including suspicious activity from the legitimate PaperCut pc-app.exe process, server.log files that have been modified, deleted, or are missing, and server.log errors such as 'ERROR No suitable driver found for jdbc:no:x' and 'ERROR DatabaseUtils - Database error looking up cardID: VALUES CAST', while warning that a lack of indicators does not prove a server is clean.

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