Organization

Blackpoint Cyber

2 mentions in 7 days · 2 in 30 days · 2 total · first seen Sep 10, 2026 · last 4d ago

Timeline2 articles

PaperCut Replaces Emergency Patches With Fixes for Two Actively Exploited Flaws

PaperCut shipped maintenance releases replacing emergency patches for two actively exploited flaws abused in AI-assisted attacks on 395 organizations.

PaperCut released PaperCut NG/MF versions 26.0.5, 25.0.13 and 24.1.10, superseding Emergency Patch Releases 1-3 for CVE-2026-81578 and CVE-2026-82078, which enable authentication bypass and arbitrary code execution on susceptible instances. GreyNoise and Blackpoint Cyber reported a suspected Russian-speaking actor weaponizing both flaws against at least 395 organizations in 48 countries, concentrated in the U.S. education sector. The campaign used hundreds of AI agents powered by OpenAI's Codex harness and a DeepSeek model, originating from IP 45.142.193.132, and avoided organizations in Russia, China, Hong Kong, Thailand and Iran.

The Hacker Newsupdated Sep 11, 10:05 UTC · 4d agofirst Sep 11, 06:46 UTC · 4d agoExploit / PoC in the wild 9 sources CVE-2026-81578 CVE-2026-820781

PaperCut Attacker Uses Hundreds of AI Agents to Compromise 440+ Instances

GreyNoise and Blackpoint tracked an AI-assisted actor using OpenAI Codex and DeepSeek agents to exploit PaperCut flaws across 440+ instances in 48 countries.

A suspected Russian-speaking actor exploited the CVE-2026-81578 authentication bypass and CVE-2026-82078 RCE chain in PaperCut NG/MF, compromising at least 440 instances across 395 organizations in 48 countries, heavily targeting education in the US, UK, France, and elsewhere. The actor used hundreds of AI agents powered by OpenAI Codex and DeepSeek plus tools like Mimikatz, SharpHound, Certipy, Rubeus, and Impacket, reaching domain admin at 12 victims and full domain admin at a US high school within seven minutes. Post-exploitation included registry hive collection and Metasploit/Meterpreter payloads, with origin traced to IP 45.142.193.132.

The Hacker Newsupdated Sep 11, 10:05 UTC · 4d agofirst Sep 10, 11:41 UTC · 5d agoThreat actor in the wild 9 sources CVE-2026-81578 CVE-2026-820781

Related CVEsby mentions

CVE-2026-820789.42%
Unsafe Reflection RCE in PaperCut NG/MF, Chained with Auth Bypass in Attacks
CVE-2026-82078 is an unsafe dynamic class loading flaw (unsafe reflection, CWE-470) in the database connection utilities of PaperCut NG and PaperCut MF: the software instantiates a database driver class based on a configurable driver name without validating it against an allowlist of approved drivers. An attacker who can manipulate system configuration parameters can point that setting at classes of their choosing, causing the server to execute arbitrary Java bytecode residing on the application classpath in the security context of the PaperCut server process. On its own the issue is rated 9.4 (Critical) with high privileges required, but when chained with the companion authentication bypass CVE-2026-81578 it yields unauthenticated remote code execution on the print-management server. All PaperCut NG and MF deployments are in scope; affected version ranges were not specified in the available data, so administrators should consult PaperCut's advisory for fixed versions. The flaw is confirmed exploited in the wild as a zero-day: it was added to CISA's KEV catalog on 2026-08-31, and public reporting describes an AI-orchestrated campaign that compromised PaperCut servers at roughly 395 organizations (~440 servers), with EPSS currently at 1.7% (76th percentile).
· PaperCut NG · PaperCut MF KEVmass
CVE-2026-815788.82%
Missing Authentication for Critical Function in PaperCut NG/MF Web Interface
CVE-2026-81578 is an improper access control flaw (CWE-305) in the web management interface of PaperCut MF and PaperCut NG in which administrative requests from unauthenticated remote users trigger backend actions before access validation completes. An attacker can invoke administrative functions without logging in, allowing modification of certain system configurations. When chained with CVE-2026-82078 (unsafe dynamic class loading), the flaw has been used to achieve unauthenticated code execution. Any organization running PaperCut NG/MF, particularly servers whose web management interface is reachable from the internet or untrusted networks, is affected. The vulnerability was added to CISA KEV on 2026-08-31 and is being exploited in the wild as part of an AI-orchestrated campaign that compromised roughly 395–440 organizations.
· PaperCut MF · PaperCut NG KEVlarge

Appears with

product PaperCut MF 2 product PaperCut NG 2 vendor PaperCut 2 ai model DeepSeek 2 organization GreyNoise 2 organization OpenAI 1 organization PaperCut 1 product Certipy 1 product Impacket 1 product Metasploit 1 product Mimikatz 1 product Rubeus 1 product SharpHound 1 vendor DeepSeek 1 vendor OpenAI 1 victim U.S. education sector 1

Entities are extracted by the model from each article. Watching an entity keeps it in this browser only (no account); the watchlist page and dashboard alerts use it.