CVE-2020-14937

9.1 criticalEPSS 1.5%

Critical (9.1) in contiki-ng contiki-ng. EPSS 1.5% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.1 critical

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

EPSS: 1.5% chance of exploitation in the next 30 days; higher than 73% of CVEs (scores of 2026-10-31)
CWEs: CWE-125, CWE-787
Published: 2020-08-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

contiki-ng:contiki-ng

References

https://drive.google.com/file/d/1mAkJBVZNv5PMVwLojru0njH38zEXpWui/view?usp=sharing
https://github.com/contiki-ng/contiki-ng/issues/1354
https://drive.google.com/file/d/1mAkJBVZNv5PMVwLojru0njH38zEXpWui/view?usp=sharing
https://github.com/contiki-ng/contiki-ng/issues/1354

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