TI-2020-11748 Aliases CVE-2020-14937 GHSA-vjv3-cq6j-9224

Memory access out of buffer boundaries issues was discovered in Contiki-NG 4.4 through…

MEDIUM 42CWE-125Published 2020-08-18 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · None · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

Memory access out of buffer boundaries issues was discovered in Contiki-NG 4.4 through 4.5, in the SNMP BER encoder/decoder. The length of provided input/output buffers is insufficiently verified during the encoding and decoding of data. This may lead to out-of-bounds buffer read or write access in BER decoding and encoding functions.

Why it matters now

EPSS 0.01478 74th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:o:contiki-ng:contiki-ng::::::::	4.4 – 4.5	Vulnerable	contiki-ng

cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:* Versions 4.4 – 4.5 Vulnerable ·contiki-ng

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-14937
2026-10-03 Alias added: GHSA-vjv3-cq6j-9224

References

Exploit 1

https://github.com/contiki-ng/contiki-ng/issues/1354

Advisory 1

https://drive.google.com/file/d/1mAkJBVZNv5PMVwLojru0njH38zEXpWui/view?usp=sharing

TI-2020-14885 An issue was discovered in Contiki through 3.0 and Contiki-NG through 4.5. CVSS 3.1CRITICAL 9.8
TI-2020-16751 In Contiki 4.5, TCP ISNs are improperly random. CVSS 3.1CRITICAL 9.1
TI-2018-16029 contiki-ng version 4 contains a Buffer Overflow vulnerability in AQL (Antelope Query… CVSS 3.1CRITICAL 9.8
TI-2018-13749 An issue was discovered in the MQTT server in Contiki-NG before 4.2. CVSS 3.0CRITICAL 10.0
TI-2023-14381 Contiki-NG has off-by-one error in Antelope DBMS CVSS 3.1CRITICAL 9.8
TI-2023-14839 Contiki-NG missing NULL pointer check in IPv6 neighbor discovery CVSS 3.1CRITICAL 9.8

See all 41 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences