Aironet Active SensorHardware / appliance · Cisco
CVE-2019-1675
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 · uneditedA vulnerability in the default configuration of the Cisco Aironet Active Sensor could allow an unauthenticated, remote attacker to restart the sensor. The vulnerability is due to a default local account with a static password. The account has privileges only to reboot the device. An attacker could exploit this vulnerability by guessing the account name and password to access the CLI. A successful exploit could allow the attacker to reboot the device repeatedly, creating a denial of service (DoS) condition. It is not possible to change the configuration or view sensitive data with this account. Versions prior to DNAC1.2.8 are affected.
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 confidenceA default local account with a static password exists in Cisco Aironet Active Sensor versions prior to DNAC1.2.8. An unauthenticated remote attacker can guess this account's credentials to access the CLI with limited privileges, allowing repeated device reboots and causing denial of service.
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
Aironet Active SensorHardware / appliance
all versions
Digital Network Architecture CenterApplication
< 1.2.8CVSS 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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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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Identify Cisco Aironet Active Sensor deploymentInventory your network for Cisco Aironet Active Sensor devices. Check network diagrams, asset inventories, or scan for devices responding to sensor management protocols on common ports.Affected if Cisco Aironet Active Sensor devices are present in the environment
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Check DNAC versionIf sensors are managed by Cisco Digital Network Architecture Center, access the DNAC administration interface and navigate to the version information page or run 'show version' command via CLI to identify the DNAC release.Affected if DNAC version is below 1.2.8 and manages Cisco Aironet Active Sensor devices
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Verify management interface accessibilityDetermine if the sensor's management interface is reachable from untrusted networks. Check ACLs, firewall rules, and VPN configurations that control access to the sensor management IP addresses on ports used for CLI access (typically SSH/Telnet).Affected if Sensor management interface is exposed to untrusted networks without proper access controls
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Review for unauthorized CLI access attemptsCheck sensor system logs and DNAC logs for repeated SSH or CLI login failures, successful logins from unexpected source IP addresses, or commands related to device reboots.Affected if Logs show unauthorized login attempts or unexpected CLI access to sensor devices
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Audit sensor account configurationAccess the sensor CLI (if authorized) and review local user accounts configured on the device. Look for the default sensor account that should not exist in hardened configurations.Affected if A default local account with static credentials is present on the sensor device
Environment is affected if Cisco Aironet Active Sensor devices are deployed, managed by DNAC versions prior to 1.2.8, and their management interfaces are accessible from networks where untrusted parties could attempt login.
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.
From vendor data1.2.8
Upgrade to DNAC1.2.8 or later to receive the patched Cisco Aironet Active Sensor firmware. If immediate mitigation is required, restrict network access to the sensor's management interface using ACLs or firewall rules.
Fix this in Aironet Active Sensor
Scoped from the published advisory
- Consultation3.0 h
- Implementation4.0 h
- Testing2.0 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 $3,168.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-1675 — 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-2019-1675 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
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