How severe is CVE-2019-3983?

CVE-2019-3983 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-3983 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-3983?

CVE-2019-3983 affects Amazon Blink Xt2 Sync Module Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-3983?

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

When was CVE-2019-3983 published?

CVE-2019-3983 was published on 2019-12-11 and last updated on 2026-06-17.

CVE-2019-3983

CVE-2019-3983 is a medium-severity vulnerability in Amazon Blink Xt2 Sync Module Firmware with a CVSS 3.x base score of 6.8. 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-798.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
CVSS v2: 7.2
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Amazon Blink Xt2 Sync Module Firmware
Published: 2019-12-11
Last modified: 2026-06-17

Description

Blink XT2 Sync Module firmware prior to 2.13.11 allows remote attackers to execute arbitrary code and commands on the device due to insufficient UART protections.

Frequently asked questions

What is CVE-2019-3983?: Blink XT2 Sync Module firmware prior to 2.13.11 allows remote attackers to execute arbitrary code and commands on the device due to insufficient UART protections.
How severe is CVE-2019-3983?: CVE-2019-3983 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-3983 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-3983?: CVE-2019-3983 affects Amazon Blink Xt2 Sync Module Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-3983?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-3983 published?: CVE-2019-3983 was published on 2019-12-11 and last updated on 2026-06-17.

References

https://www.tenable.com/security/research/tra-2019-51

Affected products (1)

cpe:2.3:o:amazon:blink_xt2_sync_module_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Amazon Blink Xt2 Sync Module Firmware

CVE-2019-3984 — Critical (CVSS 9.8): Blink XT2 Sync Module firmware prior to 2.13.11 allows remote attackers to execute arbitrary commands on the device due…
CVE-2019-3989 — Critical (CVSS 9.8): Blink XT2 Sync Module firmware prior to 2.13.11 allows remote attackers to execute arbitrary commands on the device due…
CVE-2019-3988 — High (CVSS 8.8): Blink XT2 Sync Module firmware prior to 2.13.11 allows remote attackers to execute arbitrary commands on the device due…
CVE-2019-3987 — High (CVSS 8.8): Blink XT2 Sync Module firmware prior to 2.13.11 allows remote attackers to execute arbitrary commands on the device due…
CVE-2019-3986 — High (CVSS 8.8): Blink XT2 Sync Module firmware prior to 2.13.11 allows remote attackers to execute arbitrary commands on the device due…
CVE-2019-3985 — High (CVSS 8.8): Blink XT2 Sync Module firmware prior to 2.13.11 allows remote attackers to execute arbitrary commands on the device due…

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