What’s Vulnerable › Vulnerabilities

CVE-2020-14937

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-08-18 · updated 2026-06-17
• Weakness: CWE-125

Description

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.

Affected products

• contiki-ng: from 4.4 through 4.5

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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