Oct 20, 2021 Cyber Threat Intelligence

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

Daily summary

  • Sonicwall Sma 200 Firmware: public exploit or PoC linked (Path Traversal)
  • 7 new critical disclosures — review patch status on exposed services.

Top threats today

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

Active exploit activity

CVE-2021-20034 Sonicwall Sma 200 Firmware Path Traversal

  • Public exploit or PoC available
  • Exploit activity linked

Sonicwall Sma 200 Firmware Path Traversal now has public exploit or PoC linkage — assume opportunistic scanning and targeted follow-on activity.

Critical exposure

CVE-2021-41163 Discourse is an open source platform for community discussion.

  • CVSS 10
  • Remote code execution exposure

New critical Discourse RCE (CVSS 10) — fresh disclosure window; early internet scanning often precedes mature exploit chains.

Critical exposure

CVE-2021-35652 Oracle Essbase Administration Services

  • CVSS 10

New critical disclosure (CVSS 10) — high severity with a short public awareness window before exploit material typically surfaces.

Active exploitation

CISA KEV — confirmed in-the-wild exploitation.

Nothing flagged in this category for this digest.

View KEV additions

Exploit & PoC activity

CVE-2021-20034 Exploit

An improper access control vulnerability in SMA100 allows a remote unauthenticated attacker to bypass the path traversal checks and delet...

View new exploit links

Exploitation dynamics

Nothing flagged in this category for this digest.

See EPSS increases

New critical disclosures

CVE-2021-21748 CVSS 9.8

ZTE MF971R product has two stack-based buffer overflow vulnerabilities.

CVE-2021-21749 CVSS 9.8

ZTE MF971R product has two stack-based buffer overflow vulnerabilities.

CVE-2021-35617 CVSS 9.8

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Coherence Container).

CVE-2021-35652 CVSS 10

Vulnerability in the Essbase Administration Services product of Oracle Essbase (component: EAS Console).

CVE-2021-41163 CVSS 10

Discourse is an open source platform for community discussion.

CVE-2021-42764 CVSS 9.1

The Proof-of-Stake (PoS) Ethereum consensus protocol through 2021-10-19 allows an adversary to cause a denial of service (delayed consens...

CVE-2021-42766 CVSS 9.1

The Proof-of-Stake (PoS) Ethereum consensus protocol through 2021-10-19 allows an adversary to cause a denial of service (long-range cons...

View critical disclosures

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