CVE-2021-27697

9.8 criticalEPSS 1.3%

Critical (9.8) in riot-os riot. EPSS 1.3% chance of exploitation in the next 30 days.

RIOT-OS 2021.01 contains a buffer overflow vulnerability in sys/net/gnrc/routing/rpl/gnrc_rpl_validation.c through the gnrc_rpl_validation_options() function.

Severity

CVSS 3.1

9.8 critical

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

EPSS: 1.3% chance of exploitation in the next 30 days; higher than 69% of CVEs (scores of 2026-10-31)
CWE: CWE-120
Published: 2021-04-06
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

riot-os:riot

References

https://github.com/RIOT-OS/RIOT/issues/16062
https://github.com/RIOT-OS/RIOT/issues/16062

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