May 31, 2021 Cyber Threat Intelligence

Track daily vulnerability activity, KEV additions, public exploits, critical disclosures, and EPSS risk shifts.

Daily summary

  • 2 material risk changes today across KEV, exploits, critical disclosures, and EPSS movers.

Top threats today

Three highest-priority changes — analyst brief, not a CVE dump.

Critical exposure

CVE-2020-10666 Sangoma Restapps RCE

  • CVSS 9.8
  • Remote code execution exposure

New critical Sangoma Restapps RCE (CVSS 9.8) — fresh disclosure window; early internet scanning often precedes mature exploit chains.

Critical exposure

CVE-2021-33790 Techreborn Reborncore RCE

  • CVSS 9.8
  • Remote code execution exposure

New critical Techreborn Reborncore RCE (CVSS 9.8) — fresh disclosure window; early internet scanning often precedes mature exploit chains.

Active exploitation

CISA KEV — confirmed in-the-wild exploitation.

Nothing flagged in this category for this digest.

View KEV additions

Exploit & PoC activity

Nothing flagged in this category for this digest.

View new exploit links

Exploitation dynamics

Nothing flagged in this category for this digest.

See EPSS increases

New critical disclosures

CVE-2020-10666 CVSS 9.8

The restapps (aka Rest Phone apps) module for Sangoma FreePBX and PBXact 13, 14, and 15 through 15.0.19.2 allows remote code execution vi...

CVE-2021-33790 CVSS 9.8

The RebornCore library before 4.7.3 allows remote code execution because it deserializes untrusted data in ObjectInputStream.readObject a...

View critical disclosures

cvelogic Threat Intelligence