SANS Stormcast Wednesday, January 21st, 2026: Punycode Hunting; telnetd vuln; 6 day Certs and IP Certs; Oracle Patches (#)

SANS Stormcast Wednesday, January 21st, 2026: Punycode Hunting; telnetd vuln; 6 day Certs and IP Certs; Oracle Patches (#)

Author: Johannes B. Ullrich January 21, 2026 Duration: 6:44
SANS Stormcast Wednesday, January 21st, 2026: Punycode Hunting; telnetd vuln; 6 day Certs and IP Certs; Oracle Patches Add Punycode to your Threat Hunting Routine Punycode patterns in DNS queries make excellent hunting opportunities. https://isc.sans.edu/diary/Add%20Punycode%20to%20your%20Threat%20Hunting%20Routine/32640 GNU InetUtils Security Advisory: remote authentication by-pass intelnetd telnetd shipping with InetUtils suffers from a critical authentication by-pass vulnerability. https://www.openwall.com/lists/oss-security/2026/01/20/2 6-day and IP Address Certificates are Generally Available Let's Encrypt will now offer 6-day certificates as an option. These short-lived certificates can be used for IP addresses. https://letsencrypt.org/2026/01/15/6day-and-ip-general-availability Oracle Quarterly Critical Patch Update Oracle released its first quarterly patches for 2026, fixing 337 vulnerabilities https://www.oracle.com/security-alerts/cpujan2026.html#AppendixFMW keywords: oracle; certificates; letsencrypt; inetutils; punycode

Each weekday morning, Johannes B. Ullrich provides a concise, actionable briefing on the shifting landscape of digital threats and defenses with SANS Internet Storm Center's Daily Network Security News Podcast. Think of it as your first cup of coffee for cybersecurity awareness-a focused, five-minute update that cuts through the noise. The content is shaped by real-time data and analysis from the SANS Internet Storm Center, enriched by questions and experiences shared directly from the community of professionals in the field. You’ll hear about emerging vulnerabilities, active exploits, and practical insights that are both late-breaking and genuinely educational, all delivered in a straightforward, no-frills manner. This podcast serves as a reliable filter, turning the overwhelming flow of security news into a clear, digestible summary that helps you understand current risks and start your day informed. It’s built on a foundation of shared knowledge, where listener contributions actively guide the discussion, making each episode a collaborative reflection of what matters right now in network security.
Author: Language: English Episodes: 100

SANS Internet Storm Center's Daily Network Security News Podcast
Podcast Episodes
SANS Stormcast Thursday, March 12th, 2026: Zombie Zip; (#) [not-audio_url] [/not-audio_url]

Duration: 7:27
SANS Stormcast Thursday, March 12th, 2026: Zombie Zip; Analyzing "Zombie Zip" Files (CVE-2026-0866) https://isc.sans.edu/diary/Analyzing%20%22Zombie%20Zip%22%20Files%20%28CVE-2026-0866%29/32786 How "Strengthening Crypto"…