Secure Firewall Management CenterApplication · Cisco
CVE-2022-20627
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedMultiple vulnerabilities in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. These vulnerabilities are due to insufficient validation of user-supplied input by the web-based management interface. An attacker could exploit these vulnerabilities by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or access sensitive, browser-based information.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceCisco Firepower Management Center contains multiple reflected XSS vulnerabilities in its web-based management interface. The interface fails to properly validate user-supplied input, allowing authenticated attackers to inject malicious scripts via crafted URLs. When users click these malicious links, the attacker can execute arbitrary JavaScript in the user's browser context, potentially stealing session cookies or performing actions as the victim user.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
Secure Firewall Management CenterApplication
< 6.4.0.15>= 6.5.0, < 6.6.5.2>= 6.7.0, < 7.0.2CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm Cisco Secure Firewall Management Center is deployedLocate the FMC appliance in your environment. Identify the system hosting the Cisco Firepower/Firewall Management Center web interface. This is typically a dedicated appliance or virtual machine running the FMC software.Affected if The product is present in your environment
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Identify the installed FMC versionLog into the FMC web interface and navigate to the System > Troubleshooting or Help > About page to view the software version. Alternatively, use the CLI: log in as admin and run 'show version' or 'system software version'.Affected if The installed version falls into these ranges: < 6.4.0.15, OR >= 6.5.0 through < 6.6.5.2, OR >= 6.7.0 through < 7.0.2
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Verify the web-based management interface is enabledConfirm that the FMC web interface (HTTPS on port 443 by default) is accessible and operational. Check that the management interface is configured and not disabled via system settings.Affected if The web interface is enabled and reachable, providing the attack surface for reflected XSS
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Confirm user authentication is activeVerify that local or remote authentication (RADIUS, TACACS+, LDAP) is configured and functional on the FMC. Check that user accounts exist and can log in to the web interface.Affected if User authentication is enabled, as the vulnerability requires an authenticated attacker to inject malicious scripts
You are affected if Cisco Secure Firewall Management Center is installed, the web interface is enabled, and the running version is within < 6.4.0.15, 6.5.0 to 6.6.5.1, or 6.7.0 to 7.0.1.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped6.4.0.156.6.5.27.0.2
Apply the Cisco FMC software patches (or upgrade to a fixed version) when released. Until then, educate users about not clicking untrusted links and consider restricting interface access to trusted networks only.
Upgrade to 6.4.0.15, 6.6.5.2, or 7.0.2 (or later stable release) depending on your current branch
- 1. Identify the currently installed Secure Firewall Management Center version via the web interface (System > About > Version) or CLI (show version)
- 2. Determine the appropriate upgrade path based on current version: for 6.4.x upgrade to 6.4.0.15; for 6.5.x-6.6.x upgrade to 6.6.5.2; for 6.7.x-7.0.x upgrade to 7.0.2
- 3. Review Cisco FMC upgrade documentation and ensure proper backups are in place
- 4. Download the upgrade package from Cisco (requires valid service contract)
- 5. Apply the upgrade via the web interface (System > Updates > Product Updates) or CLI, following Cisco's documented upgrade procedure
- 6. After upgrade, verify the new version is installed and test that the management interface functions correctly
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Secure Firewall Management Center
Scoped from the published advisory
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-20627 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2022-20627 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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