Tuesday, February 3, 2026 Archive

Archived Security Snapshot

Critical vulnerabilities, curated daily for security professionals

Archived Security Brief

Yesterday's CVE disclosures included 14 critical vulnerabilities (CVSS 9.0+), a 180% increase from the prior day's 5 critical issues. High-priority vulnerabilities (CVSS 7.0-8.9) totaled 73, representing a 204% increase from the previous 24. Eleven vulnerabilities are actively exploited, including CVE-2026-20045 affecting Cisco Unified Communications Manager, CVE-2025-68645 in Zimbra Collaboration Suite, and CVE-2024-37079 targeting VMware vCenter Server. Notable critical disclosures include CVE-2026-25142 (CVSS 10.0) in SandboxJS, CVE-2026-22778 (CVSS 9.8) affecting vLLM inference engine, and CVE-2026-21509 (CVSS 9.5) impacting Microsoft Office. Patch availability currently stands at 0%, requiring organizations to implement compensating controls while monitoring for vendor updates.

  • 14 critical CVEs disclosed (180% increase from prior day's 5)
  • 73 high-priority CVEs identified (204% increase from 24)
  • 11 actively exploited vulnerabilities including Cisco, Zimbra, VMware, and Microsoft products
  • 0% patch availability across disclosed vulnerabilities
  • Affected systems include enterprise communications (Cisco UCM), collaboration suites (Zimbra), virtualization platforms (VMware vCenter), and productivity software (Microsoft Office)

Immediate action: Organizations using Cisco Unified Communications Manager, Zimbra Collaboration Suite, VMware vCenter Server, and Microsoft Office should prioritize assessment and implement network segmentation or access restrictions as compensating controls. Monitor vendor security advisories for patch releases, as no fixes are currently available for yesterday's disclosures.

How to read this brief

CVSS score (e.g. 9.1) — severity from 0–10. Red marks critical (9+), orange high (7–8.9).

Exploitability — how hard the flaw is to attack, read from the CVSS vector:

  • Network / Adjacent / Local / Physical — how close an attacker must get. Network means reachable over the internet.
  • No / Low / High privileges — the access they need first. No privileges means no login required.
  • No interaction / User interaction — 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 — “Network · No privileges · No interaction” is the worst case: hit from anywhere, no credentials, no victim action.

Actively exploited — confirmed under attack in the wild (CISA’s Known Exploited Vulnerabilities catalog). Prioritize these regardless of score.

EPSS · Nth percentile — FIRST.org’s estimated chance a flaw is exploited within 30 days. We flag it only in the top 10% — a statistical signal it’s unusually likely to be targeted, separate from whether attacks are confirmed.

💡 Tip: Swipe CVE cards left to ⭐ star, right to ❌ remove

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