Tuesday, December 9, 2025 Archive

Archived Security Snapshot

Critical vulnerabilities, curated daily for security professionals

Archived Security Brief

Tuesday's vulnerability landscape shows continued stability with four critical vulnerabilities and 74 high-priority CVEs remaining consistent with Monday's disclosure activity. Nine actively exploited CISA KEV vulnerabilities continue to require remediation. The overall critical CVE frequency maintains a 66% decrease compared to historical averages, reflecting sustained below-average disclosure activity as the work week progresses.

  • Four critical vulnerabilities (CVSS 9.0+) remain active, unchanged from Monday's count
  • Seventy-four high-priority vulnerabilities (CVSS 7.0-8.9), maintaining consistent mid-week disclosure levels
  • Nine actively exploited CISA KEV vulnerabilities requiring remediation, stable from Monday
  • Critical CVE frequency decreased 66% compared to historical average, showing sustained below-average activity

Immediate action: Security teams should continue monitoring the four active critical vulnerabilities and review the 74 high-priority CVEs for applicability. Organizations should prioritize remediation of the nine actively exploited CISA KEV vulnerabilities.

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

Section Navigation