--- title: "CVE-2026-20316: Cisco Secure Firewall Management Center… | CubePath" description: "A vulnerability in the web interface of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated, remote attacker to log…" language: en source: https://cubepath.com/security/cve/CVE-2026-20316 --- # CVE-2026-20316: Cisco Secure Firewall Management Center… | CubePath ## Description A vulnerability in the web interface of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated, remote attacker to log in to an affected device using a low-privileged account to access sensitive data within the impacted systems. This vulnerability is due to the presence of static user credentials for a low-privileged account. An attacker could exploit this vulnerability by using the account to log in to an affected system. A successful exploit could allow the attacker to log in to the affected system and access sensitive data as the low-privileged user. Note: If the FMC management interface does not have public internet access, the attack surface that is associated with this vulnerability is reduced. Cisco has assigned this security advisory a Security Impact Rating (SIR) of High rather than Medium as the score indicates. The reason is that this vulnerability can be used with other Cisco Secure FMC Software vulnerabilities to elevate privileges. Official description from the CVE record, published by cisco. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-20316) ## Key data ### CVSS 3.1 Medium 5.3 Score published by cisco in the CVE record. CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N | Metric | Value | What it means | | ---------------------- | --------- | ----------------------------------------------------------------------------------- | | Attack vector | Network | The vulnerable component can be reached over a network, possibly from the Internet. | | Attack complexity | Low | No special conditions are needed. The attack can be repeated at will. | | Privileges required | None | No account or privileges are needed. | | User interaction | None | No action from any user is needed. | | Scope | Unchanged | The impact stays within the vulnerable component. | | Confidentiality impact | Low | Limited effect on the secrecy of data. | | Integrity impact | None | No effect on the trustworthiness of data. | | Availability impact | None | No effect on availability. | CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) . ### EPSS Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days. Score 0.35096 (35.1% probability) Percentile 98.5% Scores of Nov 10, 2026 Model v2026.06.15 ### CISA Known Exploited Vulnerabilities This CVE is listed in the CISA KEV catalog. Name in the catalog Cisco Secure Firewall Management Center Use of Hard-coded Password Vulnerability Added to the catalog Jul 29, 2026 Federal due date Aug 1, 2026 Ransomware campaigns Known use ### CISA assessment as of Jul 29, 2026 Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA. Exploitation Recorded by CISA as active Automatable yes Technical impact partial ### Weakness (CWE) CWE catalog version 5.0. CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license. - [CWE-259](https://cwe.mitre.org/data/definitions/259.html) Use of Hard-coded Password ## Affected products Products listed in the CVE record, as the CNA published them. - Cisco Secure Firewall Management Center (FMC) - affected: 7.0.0 - affected: 7.0.0.1 - affected: 7.0.1 - affected: 7.0.1.1 - affected: 7.0.2 - affected: 7.2.0 - affected: 7.0.2.1 - affected: 7.0.3 - affected: 7.2.0.1 - affected: 7.0.4 - affected: 7.2.1 - affected: 7.0.5 - affected: 7.3.0 - affected: 7.2.2 - affected: 7.3.1 - affected: 7.2.3 - affected: 7.2.3.1 - affected: 7.2.4 - affected: 7.0.6 - affected: 7.2.4.1 - affected: 7.2.5 - affected: 7.3.1.1 - affected: 7.4.0 - affected: 7.0.6.1 - affected: 7.2.5.1 - and 43 more ## References Links listed in the CVE record. They lead to other sites, which CubePath does not control. - [cisco-sa-fmc-static-cred-BET3Cjh](https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-static-cred-BET3Cjh) (sec.cloudapps.cisco.com) ## Timeline 1. ID reserved Oct 8, 2025 2. Added to CISA KEV Jul 29, 2026 3. Record published Jul 29, 2026 4. Record last updated Sep 16, 2026 ## Look up another CVE ## About CubePath CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection. [Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection) Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:10 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)