How severe is CVE-2017-8867?

CVE-2017-8867 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2017-8867 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-8867?

CVE-2017-8867 affects Cognitoys Stemosaur Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-8867?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-8867 published?

CVE-2017-8867 was published on 2017-12-11 and last updated on 2026-06-17.

CVE-2017-8867

CVE-2017-8867 is a medium-severity vulnerability in Cognitoys Stemosaur Firmware with a CVSS 3.x base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 4.3
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Cognitoys Stemosaur Firmware
Published: 2017-12-11
Last modified: 2026-06-17

Description

Elemental Path's CogniToys Dino smart toys through firmware version 0.0.794 use AES-128 with ECB mode to encrypt voice traffic between the device and remote server, allowing a malicious user to map encrypted traffic to a particular AES key index and gaining further access to eavesdrop on privacy-sensitive voice communication of a child and their Dino device.

Frequently asked questions

What is CVE-2017-8867?: Elemental Path's CogniToys Dino smart toys through firmware version 0.0.794 use AES-128 with ECB mode to encrypt voice traffic between the device and remote server, allowing a malicious user to map encrypted traffic to a particular AES key index and gaining further access to eavesdrop on privacy-sensitive voice communication of a child and their Dino device.
How severe is CVE-2017-8867?: CVE-2017-8867 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2017-8867 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-8867?: CVE-2017-8867 affects Cognitoys Stemosaur Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-8867?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-8867 published?: CVE-2017-8867 was published on 2017-12-11 and last updated on 2026-06-17.

References

https://dl.acm.org/citation.cfm?id=3139947

Affected products (1)

cpe:2.3:o:cognitoys:stemosaur_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Cognitoys Stemosaur Firmware

CVE-2017-8866 — 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,…
CVE-2017-8865 — Medium (CVSS 5.9): Elemental Path's CogniToys Dino smart toys through firmware version 0.0.794 do not provide sufficient protections…

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