DMZ//THREAT INTEL
FEED ACTIVELAST SYNC: 05:09:16ZSOURCES: 14CRITICAL: 39
⚠ ACTIVE ALERTS
@MsftSecIntel CRITICAL — Microsoft Defender Experts tracked increased ACR Stealer activity from late April through… /// @TalosSecurity CRITICAL — Qilin RaaS remains the most active ransomware operation globally in 2026 with 500+… /// @CrowdStrike CRITICAL — VECT ransomware + TeamPCP supply chain credential theft + BreachForums mass affiliate… /// @MandiantThreats CRITICAL — Tracking Qilin affiliate recruitment activity on Russian-language cybercrime forums… /// @FalconFeedsio CRITICAL — Dark web monitoring alert: FIFA World Cup 2026 credential ecosystem fully operational on…
39Critical Threats
18Active CVEs
8IOCs Tracked
11New Advisories
INTEL FEED/CVE TRACKER/CVE-2026-20316
TLP:WHITEVULNERABILITY BRIEF // CVE-2026-20316PUBLISHED: 2026-07-29
■ MEDIUMCVE-2026-20316★ CISA KEV LISTED

Cisco FMC Hard-Coded Password Zero-Day (KEV)

VENDOR: Cisco//PRODUCT: Cisco Secure Firewall Management Center (FMC) Software
5.3
MEDIUM
CVSS 3.1
✓
PATCH STATUS
PATCH AVAILABLE
◐
EXPLOIT STATUS
LIMITED EXPLOITATION

VULNERABILITY OVERVIEW

A hard-coded static password (CWE-259) embedded in the Cisco Secure FMC web interface allows an unauthenticated remote attacker to log in using a built-in low-privileged account and access sensitive configuration data, security policies, and event logs. Despite a CVSS of 5.3, Cisco assigned a High Security Impact Rating because the flaw chains with CVE-2026-20079 (CVSS 10.0) via a shared IOC (/var/tmp/license.tmp) to achieve full root-level compromise of the management plane. CISA added this to KEV on July 29, 2026 with a federal remediation deadline of August 1, 2026; Cisco confirmed active zero-day exploitation during July.

CVSS BREAKDOWN

↗
Attack Vector
NETWORK
△
Attack Complexity
LOW
⚷
Privs Required
NONE
◈
User Interaction
NONE
⊕
Scope / Impact
UNCHANGED
C:L · I:N · A:N
AFFECTED VERSIONSCisco Secure FMC Software all versions prior to hotfix releases

CITATIONS

  • → https://www.cisa.gov/news-events/alerts/2026/07/29/cisa-adds-one-known-exploited-vulnerability-catalog
  • → https://horizon3.ai/attack-research/vulnerabilities/cve-2026-20316/
  • → https://cybersecuritynews.com/cisco-firewall-management-center-0-day/
  • → https://socprime.com/blog/cve-2026-20316-cisco-fmc-zero-day-exploited/
  • → https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-static-cred-BET3Cjh
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