HOMEVULNERABILITIESCVE-2022-35927
CRITICAL

CVE-2022-35927

CWE-120Published: August 4, 2022· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

Contiki-NG is an open-source, cross-platform operating system for IoT devices. In the RPL-Classic routing protocol implementation in the Contiki-NG operating system, an incoming DODAG Information Option (DIO) control message can contain a prefix information option with a length parameter. The value of the length parameter is not validated, however, and it is possible to cause a buffer overflow when copying the prefix in the set_ip_from_prefix function. This vulnerability affects anyone running a Contiki-NG version prior to 4.7 that can receive RPL DIO messages from external parties. To obtain a patched version, users should upgrade to Contiki-NG 4.7 or later. There are no workarounds for this issue.

NVD Source

Technical Analysis

CVE-2022-35927 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

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 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

contiki-ng1 product(s)
contiki-ng
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories

PATCHhttps://github.com/contiki-ng/contiki-ng/pull/1589/commits/4fffab0e632c4d01910fa957d1fd9ef321eb87d2
PATCHhttps://github.com/contiki-ng/contiki-ng/pull/1589/commits/4fffab0e632c4d01910fa957d1fd9ef321eb87d2
ADVISORYhttps://github.com/contiki-ng/contiki-ng/pull/1589
ADVISORYhttps://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-9rm9-3phh-p4wm
ADVISORYhttps://github.com/contiki-ng/contiki-ng/pull/1589
ADVISORYhttps://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-9rm9-3phh-p4wm

All References (6)

→
https://github.com/contiki-ng/contiki-ng/pull/1589Third Party Advisory
→
https://github.com/contiki-ng/contiki-ng/pull/1589/commits/4fffab0e632c4d01910fa957d1fd9ef321eb87d2Patch · Third Party Advisory
→
https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-9rm9-3phh-p4wmThird Party Advisory
→
https://github.com/contiki-ng/contiki-ng/pull/1589Third Party Advisory
→
https://github.com/contiki-ng/contiki-ng/pull/1589/commits/4fffab0e632c4d01910fa957d1fd9ef321eb87d2Patch · Third Party Advisory
→
https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-9rm9-3phh-p4wmThird Party Advisory

Quick Facts

CVE IDCVE-2022-35927
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-120
CISA KEVNo
Affected1 vendor(s)
PublishedAug 4, 2022

Related CVEs (CWE-120)

CVE-2015-5093
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CVE-2022-31481
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CVE-2023-4260
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CVE-2024-25139
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CVE-1999-1237
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CVE-2007-1770
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Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2022-35927 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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