
Hosted by Johannes B. Ullrich · EN

SANS Stormcast Friday, May 15th, 2026: Website Fraud; Outlook Link Preview Bug; NGINX Vuln; Cisco 0-Day Tearing apart website fraud to see how it works. (@sans_edu) https://isc.sans.edu/diary/%5BGUEST%20DIARY%5D%20Tearing%20apart%20website%20fraud%20to%20see%20how%20it%20works./32958 Simple bypass of the link preview function in Outlook Junk folder https://isc.sans.edu/diary/Simple%20bypass%20of%20the%20link%20preview%20function%20in%20Outlook%20Junk%20folder/32990 NGINX Vulnerability https://depthfirst.com/nginx-rift Cisco SDWan 0-Day https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-rpa2-v69WY2SW keywords: cisco; sdwan; nginx; outlook; fraud

SANS Stormcast Thursday, May 14th, 2026: Flexbile Windows Proxy; News from Nightmare Eclipse; Adobe Patches Proxying the Unproxyable? Sending EXE traffic to a Proxy https://isc.sans.edu/diary/Proxying%20the%20Unproxyable%3F%20Sending%20EXE%20traffic%20to%20a%20Proxy/32982 New Nightmare Eclipse Vulnerabilities Disclosed https://github.com/Nightmare-Eclipse/YellowKey https://github.com/Nightmare-Eclipse/GreenPlasma Adobe Patches https://helpx.adobe.com/security.html keywords: adobe; patches; nightmare; eclipse; bitlocker; yellowkey; greenplasma; proxy

SANS Stormcast Wednesday, May 13th, 2026: Microsoft Patch Tuesday; Large npm/pypi Compromise; Rubygems Attack Microsoft Patch Tuesday https://isc.sans.edu/diary/32980 Tanstack npm and others compromised https://socket.dev/blog/tanstack-npm-packages-compromised-mini-shai-hulud-supply-chain-attack Ruby Gems Attack https://x.com/maciejmensfeld/status/2054164602577940619 keywords: Ruby; gems; tanstack; microsoft; patch; pypi; npm

SANS Stormcast Tuesday, May 12th, 2026: Apple Patches; Encrypted RCS; CAPTCHAs; Checkmarx vs TeamPCP; Apple Patches Everything https://isc.sans.edu/diary/Apple%20Patches%20Everything/32976 End-to-End Encrypted RCS Messages https://www.apple.com/newsroom/2026/05/end-to-end-encrypted-rcs-messaging-begins-rolling-out-today-in-beta/ Why we use CAPTCHAs https://isc.sans.edu/diary/Why%20we%20use%20CAPTCHAs/32974 Checkmarx Jenkins AST plugin compromise https://checkmarx.com/blog/ongoing-security-updates/ keywords: checkmarx; jenkins; captcha; rcs; apple; ios;

SANS Stormcast Monday, May 11th, 2026: New Linux Priv Escalation; PAM Backdoors; CPanel Updates; Let's Encrypt Another Universal Linux Local Privilege Escalation (LPE) Vulnerability: Dirty Frag https://isc.sans.edu/diary/Another%20Universal%20Linux%20Local%20Privilege%20Escalation%20%28LPE%29%20Vulnerability%3A%20Dirty%20Frag/32968 PAM Backdoors Steel Passwords https://flare.io/learn/resources/blog/pamdoora-new-linux-pam-based-backdoor-sale-dark-web CPanel Updates https://support.cpanel.net/hc/en-us/sections/360007088193-Security Let's Encrypt Briefly Halts Certificate Issuance https://letsencrypt.status.io keywords: certificates; lets encrypt; cpanel; pam; backdoor; linux; privilege escalation; dirty frag; copy fail

SANS Stormcast Friday, May 8th, 2026: AI Generated Dashboard; Ivanti Patches; Redis Vuln; @sans_edu Marcio Enriquez An Adaptive Cyber Analytics UI for Web Honeypot Logs https://isc.sans.edu/diary/An%20Adaptive%20Cyber%20Analytics%20UI%20for%20Web%20Honeypot%20Logs%20%5BGuest%20Diary%5D/32962 Ivanti May Patchday https://hub.ivanti.com/s/article/May-2026-Security-Advisory-Ivanti-Endpoint-Manager-Mobile-EPMM-Multiple-CVEs Redis Security advisory: [CVE‑2026‑23479] [CVE‑2026‑25243] [CVE-2026-25588] [CVE‑2026‑25589] [CVE-2026-23631] https://redis.io/blog/security-advisory-cve202623479-cve202625243-cve-2026-25588-cve202625589-cve-2026-23631/ @sans_edu research paper: Marcio Enriquez [link will be added once the paper has been published] keywords: redis; ivanti; honepot; ui; llm;

SANS Stormcast Thursday, May 7th, 2026: .DE DNSEC Fail; PAN OS 0-Day Patched; Technical issue with .de domains https://blog.denic.de/en/technical-issue-with-de-domains-resolved/ CVE-2026-0300 PAN-OS: Unauthenticated user initiated Buffer Overflow Vulnerability in User-ID Authentication Portal https://security.paloaltonetworks.com/CVE-2026-0300 Android Security Bulletin—May 2026 CVE-2026-0073 https://source.android.com/docs/security/bulletin/2026/2026-05-01 keywords: android; pan-os; dnssec; .de

SANS Stormcast Wednesday, May 6th, 2026: Cleartext Passwords in Edge; SSL.com Root Rotation; DAEMONTOOLS Backdoor; Cleartext Passwords in MS Edge? In 2026? https://isc.sans.edu/diary/Cleartext%20Passwords%20in%20MS%20Edge%3F%20In%202026%3F/32954 SSL.com rotates its root certificate today https://isc.sans.edu/diary/SSL.com%20rotates%20their%20root%20certificate%20today/32956 DEAMONTOOLS Compromise https://securelist.com/tr/daemon-tools-backdoor/119654/ keywords: daemontools; supply chain; ssl.com; CA; cleartext; password; edge;

SANS Stormcast Tuesday, May 5th, 2026: Honeypot Update; MOVEit Patches; Apache http2 Vuln; DShield Honeypot Update https://isc.sans.edu/diary/DShield%20Honeypot%20Update/32948 MOVEit Automation Critical Security Alert Bulletin – April 2026 – (CVE-2026-4670, CVE-2026-5174) https://community.progress.com/s/article/MOVEit-Automation-Critical-Security-Alert-Bulletin-April-2026-CVE-2026-4670-CVE-2026-5174 Apache httpd http2 vulnerability https://seclists.org/oss-sec/2026/q2/387 keywords: http2; apache; progress moveit; honeypot;

SANS Stormcast Monday, May 4th, 2026: Malicious Homebrew Ads; Wireshark Update; Digicert False Positive; cPanel Exploited Malicious Ad for Homebrew Leads to MacSync Stealer https://isc.sans.edu/diary/Malicious%20Ad%20for%20Homebrew%20Leads%20to%20MacSync%20Stealer/32942 Wireshark Update https://www.wireshark.org/docs/relnotes/wireshark-4.6.5.html Digicert Microsoft Defender False Positive https://www.reddit.com/r/cybersecurity/comments/1t2hfsh/mde_flagging_digi_cert_certificate_as_malicious/ https://bugzilla.mozilla.org/show_bug.cgi?id=2033170 cPanel Exploited https://support.cpanel.net/hc/en-us/articles/40073787579671-Security-CVE-2026-41940-cPanel-WHM-WP2-Security-Update-04-28-2026 keywords: cpanel; digicert; microsoft; defender; false positive; wireshark; homebrew