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CVE Record

CVE-2022-40918: Buffer overflow in firmware lewei_cam binary version 2.0.10 in Force 1 Discovery Wifi U818A HD+ FPV Drone a...

Buffer overflow in firmware lewei_cam binary version 2.0.10 in Force 1 Discovery Wifi U818A HD+ FPV Drone allows attacker to gain remote code execution as root user via a specially crafted UDP packet. Please update the Reference section to these links > http://thiscomputer.com/ > https://www.bostoncyber.org/ > https://medium.com/@meekworth/exploiting-the-lw9621-drone-camera-module-773f00081368

CriticalCVSS 9.8Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

This is a critical flaw in a drone camera firmware component. A network-reachable attacker could potentially take over the device as root using a crafted UDP packet. The sources do not show broad enterprise software impact, active exploitation, or a confirmed vendor patch.

Executive priority

Treat this as high urgency where the affected drone or camera module is used near sensitive networks or operations. The business risk is device takeover and possible pivot potential, but the known exposure is niche and the sources do not prove active exploitation.

Technical view

CVE-2022-40918 is a CWE-787 buffer overflow in the lewei_cam binary version 2.0.10 used by the Force 1 Discovery Wifi U818A HD+ FPV Drone. CVSS 3.1 is 9.8: network attack vector, low complexity, no privileges, no user interaction, and full confidentiality, integrity, and availability impact.

Likely exposure

Exposure appears limited to environments operating the named Force 1 Discovery Wifi U818A HD+ FPV Drone or the referenced firmware component. Risk depends on whether the device is reachable over its Wi-Fi or another network path. The CVE metadata does not provide CPEs or a complete affected-products list.

Exploitation context

The CVE description and referenced research describe remote code execution as root via a specially crafted UDP packet. CISA KEV status is false in the supplied bundle, so active exploitation is not established by the provided evidence.

Researcher notes

The record has strong severity data but weak product metadata: vendor, product, versions, and CPE fields are listed as n/a despite the descriptive title naming a device and firmware binary. Patch status is not established in the supplied sources.

Mitigation direction

  • Check Force 1 or module vendor guidance for firmware updates or retirement advice.
  • Remove affected drones or camera modules from production or trusted networks.
  • Segment drone Wi-Fi from corporate, operational, and sensitive networks.
  • Restrict UDP reachability to the device wherever network controls exist.
  • Retire the device if no supported firmware fix is available.

Validation and detection

  • Inventory Force 1 Discovery Wifi U818A HD+ FPV Drone usage.
  • Confirm whether firmware includes lewei_cam binary version 2.0.10.
  • Verify the device is not reachable from enterprise or guest networks.
  • Review wireless and network logs for unexpected UDP traffic to the device.
  • Track CVE and vendor references for updated affected-product or patch information.
Prepared
Confidence
medium
Sources
4

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-787: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2022-40918 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
9.8CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

9.8Critical
CVSS 3.1 vector shape for CVE-2022-40918Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-787 · source CWE mapping

Out-of-bounds Write

Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.