CVE-2017-2864: An exploitable vulnerability exists in the generation of authentication token functionality of Circle with Dis

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CRITICAL 9.8REMOTEMITIGATE

CVE-2017-2864 is a critical-severity flaw (CVSS 9.8) affecting circle with disney firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An exploitable vulnerability exists in the generation of authentication token functionality of Circle with Disney. Specially crafted network packets can cause a valid authentication token to be returned to the attacker resulting in authentication bypass. An attacker can send a series of packets to trigger this vulnerability.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.5% (top 25%)
CISA exploited list	No
Weakness	CWE-287
Published	2017-11-07
Last modified	2026-06-17

Publisher (CNA): Talos · Vendor: meetcircle

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-11-07 16:29 UTCPublished CVE record published
2026-06-17 01:17 UTCUpdated Record last modified

meetcircle circle with disney firmware MITIGATE

Affected: 2.0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0.1

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2017-2864?

circle with disney firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-2864 being exploited?

CVE-2017-2864 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2017-2864 affect?

CVE-2017-2864 affects circle with disney firmware. Severity is critical (CVSS 9.8). An exploitable vulnerability exists in the generation of authentication token functionality of Circle with Disney. Specially crafted network packets can cause a valid authentication token to be returned to the attacker resulting in authenti

How urgent is CVE-2017-2864?

Priority 58/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2017-2917 HIGH 8.8 MITIGATE An exploitable vulnerability exists in the notifications functionality of Circle with Disney running firmware
CVE-2017-2916 HIGH 8.8 MITIGATE An exploitable vulnerability exists in the /api/CONFIG/restore functionality of Circle with Disney running fir
CVE-2017-2915 HIGH 8.0 MITIGATE An exploitable vulnerability exists in the WiFi configuration functionality of Circle with Disney running firm
CVE-2017-2914 HIGH 8.1 MITIGATE An exploitable authentication bypass vulnerability exists in the API daemon of Circle with Disney running firm
CVE-2017-2913 MEDIUM 5.9 MITIGATE An exploitable vulnerability exists in the filtering functionality of Circle with Disney

References

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