CVE-2020-13986

7.5 highEPSS 3.1%

High (7.5) in contiki-os contiki. EPSS 3.1% chance of exploitation in the next 30 days.

An issue was discovered in Contiki through 3.0. An infinite loop exists in the uIP TCP/IP stack component when handling RPL extension headers of IPv6 network packets in rpl_remove_header in net/rpl/rpl-ext-header.c.

Severity

CVSS 3.1

7.5 high

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

EPSS: 3.1% chance of exploitation in the next 30 days; higher than 87% of CVEs (scores of 2026-10-31)
CWE: CWE-835
Published: 2020-12-11
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

contiki-os:contiki

References

https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01
https://www.kb.cert.org/vuls/id/815128
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01
https://www.kb.cert.org/vuls/id/815128

Check your stack JSON