Wednesday, January 21, 2026 Archive

Archived Security Snapshot

Critical vulnerabilities, curated daily for security professionals

Archived Security Brief

Yesterday's disclosures included 12 critical vulnerabilities, a 20% increase from the prior day's 10. High-priority CVEs saw significant growth at 69 disclosures, up 50% from 46. Four actively exploited vulnerabilities require attention, including CVE-2026-20805 affecting Microsoft Windows and CVE-2025-37164 targeting HPE OneView. Notable critical issues include CVE-2026-21962 (CVSS 10.0) in Oracle HTTP Server, CVE-2026-22844 (CVSS 9.9) affecting Zoom Node Multimedia Routers, and multiple Google Chrome security UI flaws rated at CVSS 9.8. With 0% patch availability reported, organizations should prioritize compensating controls and monitoring.

  • 12 critical CVEs disclosed, 20% increase from prior day
  • 69 high-priority CVEs, up 50% from 46 previously
  • 4 actively exploited vulnerabilities including Microsoft Windows and HPE OneView
  • 0% patch availability requires immediate compensating controls
  • Affected vendors include Oracle, Google Chrome, Microsoft, Zoom, and HPE

Immediate action: Prioritize Microsoft Windows, HPE OneView, Oracle HTTP Server, and Google Chrome environments for exposure assessment given active exploitation and critical severity ratings. With no patches currently available, implement network segmentation, access restrictions, and enhanced monitoring for affected systems.

How to read this brief

CVSS score (e.g. 9.1) โ€” severity from 0โ€“10. Red marks critical (9+), orange high (7โ€“8.9).

Exploitability โ€” how hard the flaw is to attack, read from the CVSS vector:

  • Network / Adjacent / Local / Physical โ€” how close an attacker must get. Network means reachable over the internet.
  • No / Low / High privileges โ€” the access they need first. No privileges means no login required.
  • No interaction / User interaction โ€” whether a victim has to do something (open a file, click a link). No interaction means fully automatable.

The lower the bar on all three, the easier to exploit at scale โ€” โ€œNetwork ยท No privileges ยท No interactionโ€ is the worst case: hit from anywhere, no credentials, no victim action.

Actively exploited โ€” confirmed under attack in the wild (CISAโ€™s Known Exploited Vulnerabilities catalog). Prioritize these regardless of score.

EPSS ยท Nth percentile โ€” FIRST.orgโ€™s estimated chance a flaw is exploited within 30 days. We flag it only in the top 10% โ€” a statistical signal itโ€™s unusually likely to be targeted, separate from whether attacks are confirmed.

๐Ÿ’ก Tip: Swipe CVE cards left to โญ star, right to โŒ remove

Section Navigation