CVE-2017-8866: Elemental Path's CogniToys Dino smart toys through firmware version 0.0.794 share a fixed small pool of hardco

Q: How do I fix CVE-2017-8866?

stemosaur firmware: upgrade to newer than 0.0.794. Exact commands for each OS are on this page.

Q: Is CVE-2017-8866 being exploited?

CVE-2017-8866 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2017-8866 affect?

CVE-2017-8866 affects stemosaur firmware. Severity is medium (CVSS 5.9). Elemental Path's CogniToys Dino smart toys through firmware version 0.0.794 share a fixed small pool of hardcoded keys, allowing a remote attacker to use a different Dino device to decrypt VoIP traffic between a child's Dino and remote serv

Q: How urgent is CVE-2017-8866?

Priority 38/100. Remotely exploitable, no login, no user action

Routine

MEDIUM 5.9REMOTEUPGRADE

CVE-2017-8866 is a medium-severity flaw (CVSS 5.9) affecting stemosaur firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Elemental Path's CogniToys Dino smart toys through firmware version 0.0.794 share a fixed small pool of hardcoded keys, allowing a remote attacker to use a different Dino device to decrypt VoIP traffic between a child's Dino and remote server.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.9 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 49%)
CISA exploited list	No
Weakness	CWE-327
Published	2017-12-11
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: cognitoys

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

Am I affected?

Timeline

2017-12-11 21:29 UTCPublished CVE record published
2026-06-17 01:27 UTCUpdated Record last modified

cognitoys stemosaur firmware UPGRADE

Affected: <= 0.0.794

Fixed in: newer than 0.0.794

Safe to downgrade to: no unaffected older release

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-2017-8866?

stemosaur firmware: upgrade to newer than 0.0.794. Exact commands for each OS are on this page.

Is CVE-2017-8866 being exploited?

CVE-2017-8866 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-2017-8866 affect?

CVE-2017-8866 affects stemosaur firmware. Severity is medium (CVSS 5.9). Elemental Path's CogniToys Dino smart toys through firmware version 0.0.794 share a fixed small pool of hardcoded keys, allowing a remote attacker to use a different Dino device to decrypt VoIP traffic between a child's Dino and remote serv

How urgent is CVE-2017-8866?

Priority 38/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2017-8867 MEDIUM 5.9 UPGRADE Elemental Path's CogniToys Dino smart toys through firmware version 0.0.794 use AES-128 with ECB mode to encry
CVE-2017-8865 MEDIUM 5.9 UPGRADE Elemental Path's CogniToys Dino smart toys through firmware version 0.0.794 do not provide sufficient protecti

References

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