Video Surveillance 7530pd FirmwareOperating system · Cisco
CVE-2021-1598
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 Link Layer Discovery Protocol (LLDP) implementation for Cisco Video Surveillance 7000 Series IP Cameras could allow an unauthenticated, adjacent attacker to cause a memory leak, which could lead to a denial of service (DoS) condition on an affected device. These vulnerabilities are due to incorrect processing of certain LLDP packets at ingress time. An attacker could exploit these vulnerabilities by sending crafted LLDP packets to an affected device. A successful exploit could allow the attacker to cause the affected device to continuously consume memory, which could cause the device to crash and reload, resulting in a DoS condition. Note: LLDP is a Layer 2 protocol. To exploit these vulnerabilities, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).
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 · moderate confidenceMultiple vulnerabilities in the LLDP implementation of Cisco Video Surveillance 7000 Series IP Cameras allow an unauthenticated, Layer 2 adjacent attacker to cause a memory leak by sending crafted LLDP packets. The vulnerabilities stem from incorrect processing of certain LLDP packets at ingress time, which can cause the device to continuously consume memory until it crashes and reloads, resulting in a DoS condition.
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
Video Surveillance 7530pd FirmwareOperating system
< 2.12.4
Video Surveillance 7070 FirmwareOperating system
< 2.12.4CVSS 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
- Adjacent
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:A/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 device modelAccess the camera web interface or check the physical device label to confirm the model is Cisco Video Surveillance 7530pd or 7070.Affected if Device is a Cisco Video Surveillance 7530pd or 7070 series IP camera.
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Check firmware versionLog into the camera web interface and navigate to the System or About section to view the installed firmware version. Alternatively, use the camera's CLI if available and run the command to display firmware version.Affected if Firmware version is below 2.12.4.
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Verify LLDP statusAccess the camera's web interface and navigate to Network settings or Advanced settings to check whether Link Layer Discovery Protocol (LLDP) is enabled. If using CLI, check the LLDP configuration.Affected if LLDP is enabled on the device.
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Check for memory issuesIf you have CLI access, use commands to display memory usage or system resource status. Look for unusually high memory consumption or check system logs for crash or reload events.Affected if Device shows high memory consumption, frequent crashes, or unexpected reloads without another identifiable cause.
Device is affected if it is a Cisco Video Surveillance 7530pd or 7070 with firmware below 2.12.4 and has LLDP enabled.
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 data2.12.4
Apply the Cisco firmware update when available. If immediate patching is not possible, consider disabling LLDP on affected devices or implementing network segmentation to restrict LLDP traffic to trusted segments only.
Fix this in Video Surveillance 7530pd Firmware
Scoped from the published advisory
- Consultation8.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $8,608.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-1598 — 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-2021-1598 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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- Version or environment caveats, and links to real fixes
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