New Malware Libraries means New Signatures https://isc.sans.edu/diary/%5BGuest%20Diary%5D%20%20New%20Malware%20Libraries%20means%20New%20Signatures/32986 Addressing Exchange Server May 2026 vulnerability CVE-2026-42897 https://techcommunity.microsoft.com/blog/exchange/addressing-exchange-server-may-2026-vulnerability-cve-2026-42897/4518498 Microsoft Authenticator Update CVE-2026-41615 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41615 ssh-keysign-pwn (CVE-2026-46333) Patches Released https://almalinux.org/blog/2026-05-15-ssh-keysign-pwn-cve-2026-46333/
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
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/