Weekly Metasploit Update: NTLM Relay Priv Esc, MCP Server Integration, Paperclip AI RCE Chain, and more
2026-06-21T07:23:43Z•26ab2d1a7cacb1e526d0570749c92a99e3ce2c0627627a610c522dec17e00072
CVE-2026-41679ai-integrationexploitkerberosmcp-servermetasploitntlm-relaypaperclip-aiprivilege-escalationpsexecs4u2proxysecurity-updatesunauthenticated-rcevs-code-persistencewindowsxerte-online-toolkits
What happened
Rapid7 published a Metasploit weekly update adding five new modules and several enhancements. Notable items: an unauthenticated full remote code execution chain for Paperclip AI (CVE-2026-41679) that achieves RCE with six API calls against default-configured, network-accessible Paperclip instances; a Windows post-exploitation module windows/local/ntlm_relay_2_self that coerces the local machine account to authenticate via WebDAV, relays NTLM to a Domain Controller LDAP session, writes Shadow Credentials and uses S4U2Proxy to obtain a Kerberos service ticket for Administrator, enabling PsExec->
Why it matters
A reviewed impact interpretation has not been published for this record.
Evidence and limitations
- Source ID
- rapid7_blog
- Record identifier
- 26ab2d1a7cacb1e526d0570749c92a99e3ce2c0627627a610c522dec17e00072
- Enrichment time
- 2026-06-21T07:23:43Z
- AI-assisted enrichment
- Yes
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