What is the CVSS score of CVE-2022-40918?

CVE-2022-40918 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.8%.

Is there a public PoC exploit available for CVE-2022-40918?

Yes, a public proof-of-concept exploit is available for CVE-2022-40918. Prioritise patching immediately. EPSS: 1.8%.

Discovery Wifi U818A Hd Fpv Firmware CVE-2022-40918

CRITICAL

Out-of-bounds Write (CWE-787)

2022-12-06 cve@mitre.org

Memory Corruption RCE Buffer Overflow Discovery Wifi U818A Hd Fpv Firmware

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Dec 06, 2022 - 00:15 nvd

CRITICAL 9.8

DescriptionNVD

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

AnalysisAI

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. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. 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 Affected products include: Force1Rc Discovery Wifi U818A Hd\+ Fpv Firmware. Version information: version 2.0.10.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).