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Npcap 1.83

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@dmiller-nmap dmiller-nmap released this 01 Aug 22:08
· 77 commits to master since this release
v1.83
752f130

Installer and debug symbols available from https://npcap.com/#download

  • [SECURITY] Rebuilt the Windows self-installer with NSIS 3.11, addressing
    CVE-2025-43715--a race condition in earlier NSIS versions that could allow
    local attackers to escalate to SYSTEM privileges when a vulnerable installer
    is run as SYSTEM. The Npcap installer does not run as SYSTEM by default.

  • Added a check for malformed OID request objects. This should prevent the BSoD
    crashes that have been reported when setting up a PPPoE connection (#296).

  • Fixed an issue with SendToRx mode that resulted in packet injection calls
    hanging. Fixes #785.

  • SendToRx mode, which causes injected packets to be indicated as receives
    instead of sends, can now be enabled per capture handle using the
    pcap_setmode(handle, PACKET_MODE_SENDTORX). Since this feature was
    previously enabled globally via the Registry, user code can now opt out of it
    with pcap_setmode(handle, PACKET_MODE_SENDTORX_CLEAR).

  • The Npcap driver now can deliver packet timestamps using nanosecond
    precision. This feature will be made available via the portable libpcap API
    in the next Npcap SDK.

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