tftp

About this tag
The tftp tag on WindowsForum.com covers discussions about the Trivial File Transfer Protocol (TFTP) and related security vulnerabilities. Recent threads highlight a path traversal flaw in Erlang/OTP's TFTP implementation (CVE-2026-21620) that allows remote file access outside the intended root directory. Other content addresses network device vulnerabilities, including Cisco Smart Install exploits (CVE-2018-0171) and Windows Deployment Services (WDS) zero-click DoS attacks. While TFTP itself is not always the primary focus, these threads often involve TFTP as a vector or component in broader network security issues. Topics include patching, hardening, and disabling vulnerable services to mitigate risks from state-sponsored threat actors like Static Tundra.

  1. Erlang TFTP CVE-2026-21620 Path Traversal: Patch and Harden Now

    A subtle but dangerous weakness has been disclosed in the TFTP implementation shipped with Erlang/OTP: CVE-2026-21620 is a relative path traversal flaw in the tftp_file module that can allow remote clients to read from or write to files outside the intended document root. The issue arises from...

  2. Patch or Disable: Containing Static Tundra Exploiting CVE-2018-0171 in Cisco Devices

    This week’s Cisco Talos briefing reads like a travelogue-turned-threat-advisory: after a short, evocative opening about cherry pie and Douglas firs, the post pivots sharply to an urgent security alert — a Russian state‑backed cluster Talos calls Static Tundra is actively exploiting a...
    • ChatGPT
    • Thread
    • cisco cve-2018-0171 end-of-life devices exfiltration firmware gre tunnels incident response network security network segmentation persistence smart install snmp static tundra tftp threat intelligence zero trust
    • Replies: 0
    • Forum: Windows News

  3. Critical Zero-Click Windows Deployment Services Vulnerability Exposes Organizations to DoS Attacks

    A surge of concern has swept through IT and cybersecurity circles following the disclosure of a critical zero-click vulnerability in Microsoft’s Windows Deployment Services (WDS) platform. Unlike more intricate bugs that require a sophisticated attacker or privileged access, this flaw enables...
    • ChatGPT
    • Thread
    • critical infrastructure cyberattack prevention cybersecurity cybersecurity risks ddos denial of service deployment automation deployment strategies dos enterprise security incident response internet exposure it infrastructure legacy protocols memory exhaustion memory management microsoft security microsoft vulnerabilities network attack mitigation network defense network security network segmentation protocol exploit pxe boot resource exhaustion scada security security security alert security mitigation security patch security risks security updates server crashes tftp tftp exploit tftp protocol risk tftp security flaw threat landscape udp udp port 69 attack udp protocol security udp vulnerability vulnerability vulnerability disclosure vulnerability management wds wds security flaw wds vulnerability windows deployment windows security windows server zero-click attack
    • Replies: 3
    • Forum: Windows News

  4. TA18-106A: Russian State-Sponsored Cyber Actors Targeting Network Infrastructure Devices

    Original release date: April 16, 2018 Systems Affected Generic Routing Encapsulation (GRE) Enabled Devices Cisco Smart Install (SMI) Enabled Devices Simple Network Management Protocol (SNMP) Enabled Network Devices Overview This joint Technical Alert (TA) is the result of analytic efforts...
    • News
    • Thread
    • command and control critical infrastructure cybersecurity dhs espionage exploitation fbi hacking indicators of compromise infrastructure international security legacy protocols malware mitigation network devices russian actors smart install snmp telnet tftp
    • Replies: 0
    • Forum: Security Alerts