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CVE Record

CVE-2017-2889: An exploitable Denial of Service vulnerability exists in the API daemon of Circle with Disney running firmw...

An exploitable Denial of Service vulnerability exists in the API daemon of Circle with Disney running firmware 2.0.1. A large amount of simultaneous TCP connections causes the APID daemon to repeatedly fork, causing the daemon to run out of memory and trigger a device reboot. An attacker needs network connectivity to the device to trigger this vulnerability.

HighCVSS 7.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

Circle with Disney firmware 2.0.1 can be forced to reboot when an attacker with network access opens many simultaneous TCP connections. The issue affects availability only, but repeated reboots could disrupt parental-control or home network management functions.

Executive priority

Treat this as a high-priority availability risk for environments that still rely on affected Circle devices. Business urgency depends on whether the device controls important network access. There is no evidence in the supplied sources of active exploitation or confidentiality impact.

Technical view

The API daemon in Circle with Disney firmware 2.0.1 repeatedly forks under a large volume of simultaneous TCP connections. This can exhaust memory and trigger a device reboot. CVSS 3.0 is 7.5, with network attack vector, low complexity, no privileges, no user interaction, and high availability impact.

Likely exposure

Exposure appears limited to Circle Media Circle devices running firmware 2.0.1 where an attacker can reach the device over the network. The source bundle does not identify other affected versions, internet exposure requirements, or a specific vulnerable port.

Exploitation context

The CVE describes exploitation as requiring network connectivity to the device. KEV is false in the provided bundle, and no cited source here confirms active exploitation. The available evidence supports denial of service, not data theft or code execution.

Researcher notes

The public details identify a fork-related resource exhaustion condition in APID under many simultaneous TCP connections. The source bundle does not provide patch status, vulnerable service details, or affected versions beyond firmware 2.0.1, so validation should avoid assuming broader product impact.

Mitigation direction

  • Check Circle Media or Circle with Disney guidance for firmware updates or replacement advice.
  • Restrict network access to Circle devices to trusted local networks only.
  • Block untrusted hosts from initiating TCP connections to the device.
  • Monitor affected devices for unexpected reboots or availability loss.
  • Prioritize replacement if no supported firmware fix is available.

Validation and detection

  • Inventory Circle with Disney devices and record firmware versions.
  • Confirm whether any device is running firmware 2.0.1.
  • Review network paths that allow access to the device from untrusted segments.
  • Check logs or monitoring for repeated device reboot events.
  • Document whether vendor remediation guidance exists for deployed devices.
Prepared
Confidence
high
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2017-2889 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.5 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.5CVSS 3.0HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

7.5High
CVSS 3.0 vector shape for CVE-2017-2889Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Circle MediaCirclefirmware 2.0.1Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.