Cisco Secure Firewall Management Center Software Information Disclosure Vulnerability

unknownCVE-2026-20316

CSIRTS triage

vendor: Cisco product: Secure Firewall Management Center Software Information disclosure

What: There is an information disclosure vulnerability in the software.
Who is affected: Deployments of Cisco Secure Firewall Management Center Software are affected.
Urgency: Remediation is urgent as the vulnerability has been exploited.
Action: Apply the latest security updates provided by Cisco.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: HKCERT Security Bulletins (HK · national-cert · site)
Severity: unknown
Published: 2026-07-30
Exploitation: Not in CISA KEV at last sync

Original advisory: https://www.hkcert.org/security-bulletin/cisco-secure-firewall-management-center-information-disclosure-vulnerability_20260730

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-203160.79% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 53% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-20316	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

highexploitedCisco Secure Firewall Management Center Software Static Credential Vulnerabilitycisco-psirt
unknownexploitedCisco security advisory (AV26-757)cccs
medium[NEW] [medium] Cisco Secure Firewall Management Center: Vulnerability allows information disclosurecert-bund
unknownNCSC-2026-0271 [1.00] [M/H] Vulnerability fixed in Cisco Secure Firewall Management Centerncsc-nl
unknownexploitedVulnerability in Cisco Firewall Management Center (July 30, 2026)cert-fr-avis
mediumexploitedCVE-2026-20316: A vulnerability in the web interface of Cisco Secure Firewall Management Center (FMC) Software…nvd
highexploitedCISA Adds One Known Exploited Vulnerability to Catalogcisa
criticalexploitedCVE-2026-20316: Cisco Secure Firewall Management Center Use of Hard-coded Password Vulnerabilitycisa-kev

Recent advisories for Cisco Secure Firewall

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

highexploitedCisco Secure Firewall Management Center Software Static Credential Vulnerabilitycisco-psirt · 2026-07-31
criticalCisco Secure Firewall Management Center Software Authentication Bypass Vulnerabilitycisco-psirt · 2026-07-31
medium[NEW] [medium] Cisco Secure Firewall Management Center: Vulnerability allows information disclosurecert-bund · 2026-07-30
unknownNCSC-2026-0271 [1.00] [M/H] Vulnerability fixed in Cisco Secure Firewall Management Centerncsc-nl · 2026-07-30
mediumexploitedCVE-2026-20316: A vulnerability in the web interface of Cisco Secure Firewall Management Center (FMC) Software…nvd · 2026-07-29
criticalexploitedCVE-2026-20316: Cisco Secure Firewall Management Center Use of Hard-coded Password Vulnerabilitycisa-kev · 2026-07-29