Is CVE-2022-36053 actively exploited?

No active exploitation of CVE-2022-36053 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-36053 be exploited remotely?

Yes. CVE-2022-36053 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2022-36053?

CVE-2022-36053 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2022-36053

CWE-125Published: September 1, 2022· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. The low-power IPv6 network stack of Contiki-NG has a buffer module (os/net/ipv6/uipbuf.c) that processes IPv6 extension headers in incoming data packets. As part of this processing, the function uipbuf_get_next_header casts a pointer to a uip_ext_hdr structure into the packet buffer at different offsets where extension headers are expected to be found, and then reads from this structure. Because of a lack of bounds checking, the casting can be done so that the structure extends beyond the packet's end. Hence, with a carefully crafted packet, it is possible to cause the Contiki-NG system to read data outside the packet buffer. A patch that fixes the vulnerability is included in Contiki-NG 4.8.

NVD Source

Technical Analysis

CVE-2022-36053 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.