How severe is CVE-2023-39841?

CVE-2023-39841 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2023-39841 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-39841?

CVE-2023-39841 affects Etekcity 3-in-1 Smart Door Lock Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-39841?

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

When was CVE-2023-39841 published?

CVE-2023-39841 was published on 2023-08-15 and last updated on 2026-06-17.

CVE-2023-39841

CVE-2023-39841 is a medium-severity vulnerability in Etekcity 3-in-1 Smart Door Lock Firmware with a CVSS 3.x base score of 4.6. 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-311.

Key facts

Severity: Medium (CVSS 3.x base score 4.6)
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-311
Affected product: Etekcity 3-in-1 Smart Door Lock Firmware
Published: 2023-08-15
Last modified: 2026-06-17

Description

Missing encryption in the RFID tag of Etekcity 3-in-1 Smart Door Lock v1.0 allows attackers to create a cloned tag via brief physical proximity to the original device.

Frequently asked questions

What is CVE-2023-39841?: Missing encryption in the RFID tag of Etekcity 3-in-1 Smart Door Lock v1.0 allows attackers to create a cloned tag via brief physical proximity to the original device.
How severe is CVE-2023-39841?: CVE-2023-39841 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2023-39841 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-39841?: CVE-2023-39841 affects Etekcity 3-in-1 Smart Door Lock Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-39841?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-39841 published?: CVE-2023-39841 was published on 2023-08-15 and last updated on 2026-06-17.

References

https://ashallen.net/smart-security-device-rfid-vulnerability-disclosure

Affected products (1)

cpe:2.3:o:etekcity:3-in-1_smart_door_lock_firmware:1.0:*:*:*:*:*:*:*

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