Friday, December 5, 2025 Archive

Archived Security Snapshot

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Archived Security Brief

Friday's vulnerability disclosure shows eight critical vulnerabilities and 47 high-priority CVEs, representing a significant decrease in critical activity from Thursday's elevated count of 28. Six actively exploited CISA KEV vulnerabilities continue to require remediation. The decrease in critical CVEs (from 28 to 8) reflects a return to more typical disclosure levels after Thursday's increased activity.

  • Eight critical vulnerabilities disclosed (CVSS 9.0+), a 71% decrease from Thursday's count of 28 critical CVEs
  • Forty-seven high-priority vulnerabilities (CVSS 7.0-8.9), unchanged from Thursday
  • Six actively exploited CISA KEV vulnerabilities requiring remediation, unchanged from Thursday
  • Critical CVE frequency decreased 33% compared to historical average, reflecting lower-than-average disclosure activity

Immediate action: Security teams should review the eight critical vulnerabilities and continue addressing the 47 high-priority CVEs. Organizations should prioritize remediation of the six actively exploited CISA KEV vulnerabilities. Detailed analyst comments are available for select CVEs to support remediation planning.

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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