Weekly Metasploit Update: NTLM Relay Priv Esc, MCP Server Integration, Paperclip AI RCE Chain, and more
2026-06-22T07:23:49Z•ba2db0520860ef4297c56f3e6b724aa0fb0399e4814272aa8026a6cde4394654
AI-assistanceCVE-2026-41679CertificateTraceDLL-side-loadingDonut-shellcodeDropping-ElephantFondue.exeIOC-detectionKerberosTicketTraceMCP-serverNIS2PsExecS4U2ProxyVSCode-persistencearbitrary-file-uploadin-memory-RATmetasploitntlm-relaypaperclipprivilege-escalationshadow-credentialsunauthenticated-rcevulnerability-managementwindows-local-ntlm_relay_2_selfxerte
What happened
Rapid7 weekly updates and research: Metasploit received five new modules including an unauthenticated full RCE exploit for Paperclip AI (CVE-2026-41679) achievable via a six-API-call chain; a post-exploitation local privilege-escalation module (windows/local/ntlm_relay_2_self) that coerces local machine authentication via WebDAV, relays NTLM to a Domain Controller LDAP service, writes Shadow Credentials and leverages S4U2Proxy to obtain a Kerberos service ticket for Administrator and PsExec to SYSTEM; an MCP server plugin to permit AI-assisted operations inside msfconsole; a VS Code extension–
Why it matters
A reviewed impact interpretation has not been published for this record.
Evidence and limitations
- Source ID
- rapid7_blog
- Record identifier
- ba2db0520860ef4297c56f3e6b724aa0fb0399e4814272aa8026a6cde4394654
- Enrichment time
- 2026-06-22T07:23:49Z
- AI-assisted enrichment
- Yes
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