so to recap this week: two actively exploited Defender zero-days, an unpatched Exchange spoofing vuln, a BitLocker bypass called "YellowKey", AND 137 CVEs from Patch Tuesday. this is not a normal week

Posted by FreeFeedback857@reddit | sysadmin | View on Reddit | 30 comments

let me just list what dropped in the last few days because i feel like i'm taking crazy pills

CVE-2026-41091 and CVE-2026-45498. both in Defender's Malware Protection Engine. both actively exploited in the wild. one local privilege escalation, one denial of service. patches are out but "actively exploited" means someone in your environment may have already had a bad Tuesday before you patched

Exchange spoofing vuln that lets attackers impersonate legitimate users. still unpatched as of today. microsoft's mitigation guidance is essentially "good luck"

YellowKey. a BitLocker bypass exploit. the thing that was supposed to protect you if someone walks out with a laptop. gone

oh and also 137 CVEs from regular Patch Tuesday including critical RCE in Windows DNS Client and Netlogon. you know, just the stuff that holds your entire environment together

i've been doing this for eleven years and i genuinely cannot remember a single week with this density of critical issues hitting simultaneously. we're talking endpoint protection, email infrastructure, full disk encryption, and core network services all in the same five day window

the Exchange one is what's keeping me up. unpatched with no timeline means you're doing compensating controls and hoping. in 2026. for Exchange. again

how is everyone prioritizing this week. and is anyone else's change management process completely collapsing under the volume right now