Jun 4, 2021 Cyber Threat Intelligence

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

Daily summary

  • Monstra: public exploit or PoC linked

Top threats today

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

Active exploit activity

CVE-2018-6383 Monstra

  • Public exploit or PoC available
  • Exploit activity linked

Public exploit or PoC linked — exploitation bar is lower than disclosure-only CVEs.

Critical exposure

CVE-2021-30475 aom_dsp/noise_model.c in libaom in AOMedia before 2021-03-24 has a buffer overflow.

  • CVSS 9.8

New critical Aomedia Buffer Overflow (CVSS 9.8) — fresh disclosure window; early internet scanning often precedes mature exploit chains.

Critical exposure

CVE-2021-31251 Chiyu-tech Bf-430 Firmware Auth Bypass

  • CVSS 9.8
  • Authentication bypass — unauthenticated access risk

New critical Chiyu-tech Bf-430 Firmware Auth Bypass (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

CVE-2018-6383 Exploit

Monstra CMS through 3.0.4 has an incomplete "forbidden types" list that excludes .php (and similar) file extensions but not the .pht or ....

View new exploit links

Exploitation dynamics

Nothing flagged in this category for this digest.

See EPSS increases

New critical disclosures

CVE-2021-30475 CVSS 9.8

aom_dsp/noise_model.c in libaom in AOMedia before 2021-03-24 has a buffer overflow.

CVE-2021-31251 CVSS 9.8

An authentication bypass in telnet server in BF-430 and BF431 232/422 TCP/IP Converter, BF-450M and SEMAC from CHIYU Technology Inc allow...

View critical disclosures

cvelogic Threat Intelligence