A brief daily summary of what is important in information security. The podcast is published every weekday and designed to get you ready for the day with a brief, usually 5 minute long, summary of current network security related events. The content is late breaking, educational and based on listener input as well as on input received by the SANS Internet Stormcenter. You may submit questions and comments via our contact form at https://isc.sans.edu/contact.html .
SANS Stormcast Thursday, December 18th, 2025: More React2Shell; Donicwall and Cisco Patch; Updated Chrome Advisory
December 17, 2025
6:10
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Maybe a Little Bit More Interesting React2Shell Exploit
Attackers are branching out to attack applications that initial exploits may have missed. The latest wave of attacks is going after less common endpoints and attempting to exploit applications that do not have Next.js exposed.
https://isc.sans.edu/diary/Maybe%20a%20Little%20Bit%20More%20Interesting%20React2Shell%20Exploit/32578
UAT-9686 actively targets Cisco Secure Email Gateway and Secure Email and Web Manager
Cisco s Security Email Gateway and Secure Email and Web Manager patch an already-exploited vulnerability.
https://blog.talosintelligence.com/uat-9686/
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sma-attack-N9bf4
SONICWALL SMA1000 APPLIANCE LOCAL PRIVILEGE ESCALATION VULNERABILITY
A local privilege escalation vulnerability, which SonicWall patched today, is already being exploited.
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2025-0019
Google releases vulnerability details
Google updated last week s advisory by adding a CVE to the mystery vulnerability and adding a statement that it affects WebGPU. No new patch was released.
https://chromereleases.googleblog.com/2025/12/stable-channel-update-for-desktop_16.html