SANS Stormcast Tuesday, December 16th, 2025: Current React2Shell Example; SAML woes; MSMQ issues after patch; More React2Shell Exploits CVE-2025-55182 Our honeypots continue to detect numerous React2Shell variants. Some using slightly modified exploits https://isc.sans.edu/diary/More%20React2Shell%20Exploits%20CVE-2025-55182/32572 The Fragile Lock: Novel Bypasses For SAML Authentication SAML is a tricky protocol to implement correctly, in particular if different XML parsers are used that may not always agree on how to parse a specific message https://portswigger.net/research/the-fragile-lock December Updates Causes issues with Microsoft Message Queuing https://learn.microsoft.com/en-us/windows/release-health/status-windows-10-22h2#message-queuing--msmq--might-fail-with-the-december-2025-windows-security-update keywords: MSMQ; message queue; patch; saml; ruby; react2shell

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