Tuesday, March 31, 2026 Archive

Archived Security Snapshot

Critical vulnerabilities, curated daily for security professionals

Archived Security Brief

Yesterday's disclosures include two maximum-severity vulnerabilities in MLflow (CVE-2025-15379, CVSS 10.0) and Arch steam-trader (CVE-2026-5128, CVSS 10.0), alongside critical remote code execution flaws in WordPress, Nginx UI, and SciTokens. The disclosure volume includes 14 critical CVEs—double the prior day's count of 7—and 68 high-priority vulnerabilities, up 11% from 61. Actively exploited vulnerabilities affect Citrix NetScaler (CVE-2026-3055), Zimbra Collaboration Suite (CVE-2025-66376), Craft CMS (CVE-2025-32432), and three Apple product lines, with 9 KEV entries confirmed. Attack patterns center on remote code execution and authentication bypass across web frameworks, CMS platforms, and developer tooling. No patches are currently available for the disclosed vulnerabilities, making compensating controls and network-level mitigations essential in the interim.

  • Two CVSS 10.0 vulnerabilities disclosed in MLflow (CVE-2025-15379) and Arch steam-trader (CVE-2026-5128) require immediate risk assessment
  • Critical CVE count doubled from 7 to 14 compared to the prior day, a 100% increase
  • 68 high-priority vulnerabilities disclosed, up 11% from 61 the previous day
  • RCE and authentication bypass flaws dominate disclosures across WordPress, Nginx UI, SciTokens, and multiple CMS frameworks
  • Patch availability stands at 0%—no vendor fixes are currently released for these disclosures
  • 9 actively exploited vulnerabilities confirmed, affecting Citrix NetScaler, Zimbra, Apple products, Craft CMS, Laravel Livewire, and Langflow

Immediate action: Prioritize risk assessment for environments running MLflow, WordPress, Nginx UI, Citrix NetScaler, Zimbra, and Apple products, as these carry the highest severity scores and confirmed exploitation activity. With patch availability at 0%, implement compensating controls including network segmentation, WAF rules, and access restrictions for affected services until vendor fixes are released.

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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