How severe is CVE-2018-4027?

CVE-2018-4027 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-4027 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-4027?

CVE-2018-4027 affects Anker-in Roav Dashcam A1 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-4027?

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

When was CVE-2018-4027 published?

CVE-2018-4027 was published on 2019-05-13 and last updated on 2026-06-17.

CVE-2018-4027

CVE-2018-4027 is a high-severity vulnerability in Anker-in Roav Dashcam A1 Firmware with a CVSS 3.x base score of 7.5. 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-662.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 7.8
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-662
Affected product: Anker-in Roav Dashcam A1 Firmware
Published: 2019-05-13
Last modified: 2026-06-17

Description

An exploitable denial-of-service vulnerability exists in the XML_UploadFile Wi-Fi command of the NT9665X Chipset firmware, running on the Anker Roav A1 Dashcam, version RoavA1SWV1.9. A specially crafted packet can cause a semaphore deadlock, which prevents the device from receiving any physical or network inputs. An attacker can send a specially crafted packet to trigger this vulnerability.

Frequently asked questions

What is CVE-2018-4027?: An exploitable denial-of-service vulnerability exists in the XML_UploadFile Wi-Fi command of the NT9665X Chipset firmware, running on the Anker Roav A1 Dashcam, version RoavA1SWV1.9. A specially crafted packet can cause a semaphore deadlock, which prevents the device from receiving any physical or network inputs. An attacker can send a specially crafted packet to trigger this vulnerability.
How severe is CVE-2018-4027?: CVE-2018-4027 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-4027 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-4027?: CVE-2018-4027 affects Anker-in Roav Dashcam A1 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-4027?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-4027 published?: CVE-2018-4027 was published on 2019-05-13 and last updated on 2026-06-17.

References

https://talosintelligence.com/vulnerability_reports/TALOS-2018-0699

Affected products (1)

cpe:2.3:o:anker-in:roav_dashcam_a1_firmware:1.9:*:*:*:*:*:*:*

More vulnerabilities in Anker-in Roav Dashcam A1 Firmware

CVE-2018-4029 — Critical (CVSS 9.8): An exploitable code execution vulnerability exists in the HTTP request-parsing function of the NT9665X Chipset firmware…
CVE-2018-4023 — Critical (CVSS 9.8): An exploitable code execution vulnerability exists in the XML_UploadFile Wi-Fi command of the NT9665X Chipset firmware,…
CVE-2018-4018 — Critical (CVSS 9.8): An exploitable firmware update vulnerability exists in the NT9665X Chipset firmware, running on Anker Roav A1 Dashcam…
CVE-2018-4014 — Critical (CVSS 9.8): An exploitable code execution vulnerability exists in Wi-Fi Command 9999 of the Roav A1 Dashcam running version…
CVE-2018-4017 — High (CVSS 8.8): An exploitable vulnerability exists in the Wi-Fi Access Point feature of the Roav A1 Dashcam running version…
CVE-2018-4016 — High (CVSS 8.8): An exploitable code execution vulnerability exists in the URL-parsing functionality of the Roav A1 Dashcam running…

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