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Video Surveillance 7530pd FirmwareOperating system · Cisco

CVE-2021-1563

MEDIUM · 6.5 CVSS v3.1 Published 2021-06-04
Fix available
A fix is available. Upgrade to 2.12.3 or later.
See remediation →
70/100
Remediation priority · Elevated
No privileges Zero-click

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 · unedited
Multiple vulnerabilities in the implementation of the Cisco Discovery Protocol and Link Layer Discovery Protocol (LLDP) 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 Cisco Discovery Protocol and LLDP packets at ingress time. An attacker could exploit these vulnerabilities by sending crafted Cisco Discovery Protocol or 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: Cisco Discovery Protocol and LLDP are Layer 2 protocols. 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 · high confidence

Memory leak vulnerability in Cisco Video Surveillance 7000 Series IP Cameras' Cisco Discovery Protocol (CDP) and Link Layer Discovery Protocol (LLDP) packet processing. Crafted CDP or LLDP packets sent by an unauthenticated adjacent attacker cause memory exhaustion, leading to device crash and reload (DoS).

MitigationApply Cisco firmware updates for Video Surveillance 7000 Series IP Cameras when available; alternatively, disable CDP/LLDP on affected interfaces if not required for operations, and implement network segmentation to restrict Layer 2 access to trusted devices only.

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
Affected:< 2.12.3
Video Surveillance 7070 FirmwareOperating system
Affected:< 2.12.3

CVSS 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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify the camera model
    Access the camera's web interface or use SNMP to determine if the device is a Cisco Video Surveillance 7530pd or 7070 model. Check the system information or hardware label.
    Affected if The device is a Cisco Video Surveillance 7530pd or 7070 IP camera.
  2. Check the installed firmware version
    Access the camera's web interface under System > Firmware or System > Information, or use the camera's CLI if available, to retrieve the current firmware version number.
    Affected if The firmware version is lower than 2.12.3.
  3. Verify CDP is enabled on affected interfaces
    Access the camera's web interface or CLI and navigate to Network settings to check if Cisco Discovery Protocol (CDP) is enabled on the relevant interfaces.
    Affected if CDP is enabled on any interface.
  4. Verify LLDP is enabled on affected interfaces
    Access the camera's web interface or CLI and navigate to Network settings to check if Link Layer Discovery Protocol (LLDP) is enabled on the relevant interfaces.
    Affected if LLDP is enabled on any interface.
  5. Assess network accessibility
    Review network topology and access controls to determine if unauthenticated adjacent attackers could send CDP or LLDP packets to the affected camera.
    Affected if The camera is accessible to untrusted Layer 2 neighbors without network segmentation.

You are affected if you have a Cisco Video Surveillance 7530pd or 7070 camera running firmware below version 2.12.3, with CDP or LLDP enabled, in a network where untrusted adjacent attackers could reach the device.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Upgrade available Upgrade to 2.12.3 or later
Fixed in 2.12.3
Interim mitigation

Apply Cisco firmware updates for Video Surveillance 7000 Series IP Cameras when available; alternatively, disable CDP/LLDP on affected interfaces if not required for operations, and implement network segmentation to restrict Layer 2 access to trusted devices only.

Fix this in Video Surveillance 7530pd Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA2.0 h
20.0 hours of engineering $3,500
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Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2021-1563 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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
  • No spam, self-promotion, credentials, or personal data