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No exploitation reported

CVE-2018-4027

No exploitation reported by the sources we read.

  • Published2019-05-13
  • WeaknessCWE-662

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2019-05-1316:29CVE publishedNVD

Versions per branch

NVD
Anker-in roav dashcam a1 firmwareversion to verify
BranchAffectedFixed in
1.9= 1.9no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVSS 3.17.5read 2026-10-23
  • CNACVSS 3.05.3known since 2026-10-23
  • NVDCVSS 2.07.8read 2026-10-23
  • NVDweakness (CWE)CWE-662read 2026-10-23
  • FIRST EPSSEPSS score1.7 %2026-11-08
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2019-05-13
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-vfv6-gcfm-5fx2

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.

Is CVE-2018-4027 actively exploited?

Active exploitation of CVE-2018-4027 has not been confirmed. Its EPSS score was 1.7% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-4027?

CVE-2018-4027 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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