AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2023-33973

HIGH · CVSS 7.5 EPSS 0.96% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-05-30 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. Public exploit code or proof-of-concept references have been detected in its references. It may lead to a denial-of-service condition.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2023-33973
Severity
HIGH
CVSS
7.5
EPSS
0.96%

Original NVD Description

RIOT-OS, an operating system for Internet of Things (IoT) devices, contains a network stack with the ability to process 6LoWPAN frames. In versions 2023.01 and prior, an attacker can send a crafted frame which is forwarded by the device. During encoding of the packet a NULL pointer dereference occurs. This crashes the device leading to denial of service. A patch is available at pull request 19678. There are no known workarounds.

Related CVEs

Other vulnerabilities affecting the same vendor(s)