CVE-2019-9183

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

An issue was discovered in Contiki-NG through 4.3 and Contiki through 3.0. A buffer overflow is present due to an integer underflow during 6LoWPAN fragment processing in the face of truncated fragments in os/net/ipv6/sicslowpan.c. This results in accesses of unmapped memory, crashing the application. An attacker can cause a denial-of-service via a crafted 6LoWPAN frame.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-191 CWE-787

Affected software

No affected versions have been published.

Timeline

Published: Apr 23, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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