How severe is CVE-2025-29660?

CVE-2025-29660 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-29660 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-29660?

CVE-2025-29660 affects Yiiot Xy-3820 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-29660?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-29660 have an EU (EUVD) identifier?

Yes. CVE-2025-29660 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12371.

When was CVE-2025-29660 published?

CVE-2025-29660 was published on 2025-04-21 and last updated on 2026-06-17.

CVE-2025-29660

CVE-2025-29660 is a critical-severity vulnerability in Yiiot Xy-3820 Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-12371
Weakness: CWE-22
Affected product: Yiiot Xy-3820 Firmware
Published: 2025-04-21
Last modified: 2026-06-17

Description

A vulnerability exists in the daemon process of the Yi IOT XY-3820 v6.0.24.10, which exposes a TCP service on port 6789. This service lacks proper input validation, allowing attackers to execute arbitrary scripts present on the device by sending specially crafted TCP requests using directory traversal techniques.

Frequently asked questions

What is CVE-2025-29660?: A vulnerability exists in the daemon process of the Yi IOT XY-3820 v6.0.24.10, which exposes a TCP service on port 6789. This service lacks proper input validation, allowing attackers to execute arbitrary scripts present on the device by sending specially crafted TCP requests using directory traversal techniques.
How severe is CVE-2025-29660?: CVE-2025-29660 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-29660 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-29660?: CVE-2025-29660 affects Yiiot Xy-3820 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-29660?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-29660 have an EU (EUVD) identifier?: Yes. CVE-2025-29660 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12371.
When was CVE-2025-29660 published?: CVE-2025-29660 was published on 2025-04-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:yiiot:xy-3820_firmware:6.0.24.10:*:*:*:*:*:*:*

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