Tuesday, January 27, 2026 Archive

Archived Security Snapshot

Critical vulnerabilities, curated daily for security professionals

Archived Security Brief

Tuesday's brief covers 3 critical CVEs (CVSS 9.0+), a notable increase from zero critical disclosures the prior day. High-priority vulnerabilities rose 218% to 35 CVEs compared to 11 previously. The CISA KEV catalog added 15 actively exploited vulnerabilities, including CVE-2026-20805 affecting Microsoft Windows, CVE-2025-37164 in HPE OneView, and CVE-2026-20045 targeting Cisco Unified Communications Manager. Critical disclosures include CVE-2016-15057 and CVE-2025-70982 (both CVSS 9.9), with the latter involving incorrect access control in SpringBlade's importUser function. Patch availability stands at 0%, requiring organizations to prioritize compensating controls and monitoring until fixes become available.

  • 3 critical CVEs disclosed, up from 0 the prior day (100% increase)
  • 35 high-priority CVEs, up from 11 previously (218% increase)
  • 15 actively exploited vulnerabilities including Microsoft Windows, HPE OneView, Cisco UCM, and Zimbra Collaboration Suite
  • 0% patch availability across disclosed vulnerabilities
  • Critical access control vulnerability in SpringBlade (CVE-2025-70982) rated CVSS 9.9

Immediate action: Organizations running Microsoft Windows, HPE OneView, Cisco Unified Communications Manager, Zimbra Collaboration Suite, or VMware vCenter Server should assess exposure to the 15 actively exploited vulnerabilities. With no patches currently available, implement network segmentation, enhanced monitoring, and access restrictions 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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