SANS Stormcast: Daily Cyber Security News

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://depthf...

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

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

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/

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/sectio...

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]...

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

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/

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

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....

Danger of Libredtail https://isc.sans.edu/diary/Danger%20of%20Libredtail%20%5BGuest%20Diary%5D/32936 FreeBSD dhclient vulnerability https://www.freebsd.org/security/advisories/FreeBSD-SA-26:12.dhclient.asc Linux Copy-Fail Vulnerability CVE-2026-31431 https://copy.fail Bryan Nice Research Paper https://www.linkedin.com/in/bryannice/ https://www.sans.edu/cyber-research/detecting-ai-pickling

Today's Odd Web Requests https://isc.sans.edu/diary/Today%27s%20Odd%20Web%20Requests/32934 Incomplete Patch of APT28's Zero-Day Leads to CVE-2026-32202 https://www.akamai.com/blog/security-research/2026/apr/incomplete-patch-apt28s-zero-day-cve-2026-32202 Assess Secure Boot status with Microsoft Defender https://techcommunity.microsoft.com/blog/MicrosoftDefenderATPBlog/assess-secure-boot-status-wit...

HTTP Requests with X-Vercel-Set-Bypass-Cookie Header https://isc.sans.edu/diary/HTTP%20Requests%20with%20X-Vercel-Set-Bypass-Cookie%20Header/32930 GitHub Vulnerability CVE-2026-3854 https://www.wiz.io/blog/github-rce-vulnerability-cve-2026-3854 Microsoft RDP Notification Bug https://support.microsoft.com/en-us/topic/april-14-2026-kb5083768-os-build-28000-1836-839e4a25-d979-4158-b70c-182333045883

TeamPCP Update https://isc.sans.edu/diary/TeamPCP%20Supply%20Chain%20Campaign%3A%20Update%20008%20-%2026-Day%20Pause%20Ends%20with%20Three%20Concurrent%20Compromises%20%28Checkmarx%20KICS%2C%20Bitwarden%20CLI%20Cascade%2C%20xinference%20PyPI%29%2C%20CanisterSprawl%20npm%20Worm%20Identified%2C%20and%20Tier%201%20Coverage%20Returns/32926 https://socket.dev/blog/73-open-vsx-sleeper-extensions-glasswo...

Apple Patches Exploited Notification Flaw https://isc.sans.edu/diary/Apple%20Patches%20Exploited%20Notification%20Flaw/32922 Bitwarden CLI Compromised https://socket.dev/blog/bitwarden-cli-compromised https://community.bitwarden.com/t/bitwarden-statement-on-checkmarx-supply-chain-incident/96127 Microsoft Security Advisory CVE-2026-40372 ASP.NET Core Elevation of Privilege https://github.com/dotnet...

Beyond Cryptojacking: Telegram tdata as a Credential Harvesting Vector, Lessons from a Honeypot Incident https://isc.sans.edu/diary/%5BGuest%20Diary%5D%20Beyond%20Cryptojacking%3A%20Telegram%20tdata%20as%20a%20Credential%20Harvesting%20Vector%2C%20Lessons%20from%20a%20Honeypot%20Incident/32888 Checkmarx Compromise https://socket.dev/blog/checkmarx-supply-chain-compromise Oracle Quarterly Critical...

A .WAV With A Payload https://isc.sans.edu/diary/A%20.WAV%20With%20A%20Payload/32910 The Phishy GitHub Issue Case https://blog.atsika.ninja/posts/the-phishy-github-issue-case/ P4WNED: How Insecure Defaults in Perforce Expose Source Code Across the Internet https://morganrobertson.net/p4wned/

Handling the CVE Flood With EPSS https://isc.sans.edu/diary/Handling%20the%20CVE%20Flood%20With%20EPSS/32914 Windows Server 2025 Out of Band Patch https://learn.microsoft.com/en-us/windows/release-health/windows-message-center#4835 QEMU abused to evade detection and enable ransomware delivery https://www.sophos.com/en-us/blog/qemu-abused-to-evade-detection-and-enable-ransomware-delivery

Lumma Stealer infection with Sectop RAT (ArechClient2) https://isc.sans.edu/diary/Lumma%20Stealer%20infection%20with%20Sectop%20RAT%20%28ArechClient2%29/32904 Three Recent Windows Defender Vulnerabilities Exploited (one 0-day) https://x.com/HuntressLabs/status/2044882115574091960 FortiSandbox PoC Exploit CVE-2026-39808 https://github.com/samu-delucas/CVE-2026-39808?tab=readme-ov-file NIST Updates...

Compromised DVRs and Finding Them in the Wild https://isc.sans.edu/diary/%5BGuest%20Diary%5D%20Compromised%20DVRs%20and%20Finding%20Them%20in%20the%20Wild/32886 Cisco ISE RCE Vulnerability and WebEx Auth Bypass CVE-2026-20184 CVE-2026-20180 CVE-2026-20186 https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-rce-4fverepv https://sec.cloudapps.cisco.com/security...

Scanning for AI Models https://isc.sans.edu/diary/Scanning%20for%20AI%20Models/32896 Microsoft Update Problems https://support.microsoft.com/en-us/topic/april-14-2026-kb5082063-os-build-26100-32690-c57e289d-27c9-47cd-a183-72fabc62c5d7#:~:text=Known%20issues%20in%20this%20update Microsoft RDP File Warnings https://learn.microsoft.com/en-us/windows-server/remote/remote-desktop-services/remotepc/unde...

Microsoft Patch Tuesday April 2026 https://isc.sans.edu/forums/diary/Microsoft%20Patch%20Tuesday%20April%202026./32898/ Adobe Patches https://helpx.adobe.com/security/Home.html Fortinet Patches https://fortiguard.fortinet.com/psirt

Scans for EncystPHP Webshell https://isc.sans.edu/diary/Scans%20for%20EncystPHP%20Webshell/32892 CPUID Compromise https://securelist.com/tr/cpu-z/119365/ https://x.com/d0cTB/status/2042520961824559150 OpenAI Mac Application Update due to Axios Compromise https://openai.com/index/axios-developer-tool-compromise/ Axios Vulnerability CVE-2026-40175 https://github.com/axios/axios/security/advisories/G...

Obfuscated JavaScript or Nothing https://isc.sans.edu/diary/Obfuscated%20JavaScript%20or%20Nothing/32884 Numbers in Passwords https://isc.sans.edu/diary/Number%20Usage%20in%20Passwords%3A%20Take%20Two/32866 Adobe 0-Day Patch CVE-2026-34621 https://helpx.adobe.com/security/products/acrobat/apsb26-43.html ClickFix Bypass via ScriptEditor https://www.jamf.com/blog/clickfix-macos-script-editor-atomic-...

Honeypot Fingerprinting https://isc.sans.edu/diary/More%20Honeypot%20Fingerprinting%20Scans/32878 Microsoft Locks Accounts for Privacy/Encryption Related Developers https://sourceforge.net/p/veracrypt/discussion/general/thread/9620d7a4b3/ https://news.ycombinator.com/item?id=47687884 https://x.com/windscribecom/status/2041929519628443943 https://windowsforum.com/threads/april-2026-windows-update-e...