High severity · published Jun 18, 2021
CVE-2021-31660
RIOT-OS 2021.01 before commit 85da504d2dc30188b89f44c3276fc5a25b31251f contains a buffer overflow which could allow attackers to obtain sensitive information
7.5
CVSS
1.3%
EPSS
No
On KEV
Description
RIOT-OS 2021.01 before commit 85da504d2dc30188b89f44c3276fc5a25b31251f contains a buffer overflow which could allow attackers to obtain sensitive information.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 71% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RI
Riot · Riot-os
2021.01 · source: NVD
Affected product
RI
Riot
Riot-os
More from Riot
9.8
CVE-2026-49868
RIOT: DHCPv6 client _parse_reply() missing sub-option length check leads to size_t underflow and unbounded OOB heap read
9.8
CVE-2026-27703
RIOT has an Out-of-Bounds Write in nanoCoAP Handler
9.8
CVE-2026-22214
RIOT OS <= 2026.01-devel-317 Stack-Based Buffer Overflow in ethos Serial Frame Parser
9.8
CVE-2026-22213
RIOT OS <= 2026.01-devel-317 Stack-Based Buffer Overflow in tapslip6 Utility
9.8
CVE-2025-66647
RIOT OS has buffer overflow in gnrc_ipv6_ext_frag_reass