Thursday, January 29, 2026 Archive

Archived Security Snapshot

Critical vulnerabilities, curated daily for security professionals

Archived Security Brief

Yesterday's disclosures included 16 critical-severity CVEs, a 27% decrease from the prior day's 22 critical vulnerabilities. High-priority vulnerabilities increased 14% to 96 entries, indicating sustained disclosure volume in the 7.0-8.9 CVSS range. Fourteen actively exploited vulnerabilities appear on the KEV list, including CVE-2026-20805 affecting Microsoft Windows, CVE-2026-20045 in Cisco Unified Communications Manager, and CVE-2025-68645 targeting Zimbra Collaboration Suite. Critical entries include three CVSS 10.0 vulnerabilities: CVE-2026-23830 in SandboxJS, CVE-2025-57792 in Explorance Blue, and CVE-2026-24897 in Erugo, alongside two SolarWinds Web Help Desk deserialization flaws (CVE-2025-40551 and CVE-2025-40553). Patch availability stands at 0%, requiring organizations to implement compensating controls and enhanced monitoring until vendor remediation becomes available.

  • 16 critical-severity CVEs disclosed, down 27% from 22 the prior day
  • 96 high-priority vulnerabilities (CVSS 7.0-8.9), up 14% from 84
  • 14 actively exploited KEV entries affecting Microsoft Windows, Cisco, Zimbra, and VMware vCenter
  • 0% patch availability across disclosed vulnerabilities requires compensating controls
  • SolarWinds Web Help Desk, Explorance Blue, and DNN Dokploy among affected enterprise products

Immediate action: Organizations running Microsoft Windows, Cisco Unified Communications Manager, Zimbra Collaboration Suite, SolarWinds Web Help Desk, or VMware vCenter should implement network segmentation and enhanced monitoring for the actively exploited vulnerabilities. With no patches currently available, prioritize applying compensating controls such as access restrictions and increased logging for affected systems.

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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