Saturday, February 7, 2026 Archive

Archived Security Snapshot

Critical vulnerabilities, curated daily for security professionals

Archived Security Brief

Saturday's security landscape is dominated by 16 actively exploited CISA KEV vulnerabilities spanning Cisco Unified Communications, Zimbra, VMware vCenter, and Microsoft Office. A critical wave of SandboxJS escape vulnerabilities threatens JavaScript sandboxing, while Fortinet FortiClientEMS faces an unauthenticated SQL injection flaw. Supply chain risks emerge with malicious code embedded in the popular eslint-config-prettier package and command injection in React Native CLI. With only 27% of patches available, most organizations remain exposed.

  • 16 CISA KEV actively exploited vulnerabilities including Cisco, Zimbra, VMware vCenter, and Microsoft Office
  • 4 SandboxJS sandbox escape CVEs enable attackers to break out of JavaScript sandboxes via multiple techniques
  • Fortinet FortiClientEMS unauthenticated SQL injection (CVE-2026-21643) allows remote code execution
  • Supply chain attacks: malicious code in eslint-config-prettier and command injection in React Native CLI
  • SmarterTools SmarterMail targeted by 3 separate KEV vulnerabilities including auth bypass
  • Only 27% of patches currently available β€” most vulnerabilities remain unpatched

Immediate action: Immediately patch Cisco Unified Communications, Zimbra ZCS, and VMware vCenter Server. Audit any projects using eslint-config-prettier and React Native CLI for supply chain compromise. Review SmarterMail deployments for authentication bypass. Apply Fortinet FortiClientEMS updates as soon as patches are released.

How to read this brief

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

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

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

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

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

πŸ’‘ Tip: Swipe CVE cards left to ⭐ star, right to ❌ remove

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