CVE-2021-31663
RIOT-OS 2021.01 before commit bc59d60be60dfc0a05def57d74985371e4f22d79 contains a buffer overflow...
RIOT-OS 2021.01 before commit bc59d60be60dfc0a05def57d74985371e4f22d79 contains a buffer overflow which could allow attackers to obtain sensitive information.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
RIOT-OS 2021.01 before commit bc59d60be60dfc0a05def57d74985371e4f22d79 contains a buffer overflow which could allow attackers to obtain sensitive information.
- Record
CVE-2021-31663- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-120
- Updated
- 2026-11-02
CVE List No score
RIOT-OS 2021.01 before commit bc59d60be60dfc0a05def57d74985371e4f22d79 contains a buffer overflow which could allow attackers to obtain sensitive information.
- Record
CVE-2021-31663- Updated
- 2026-11-02
EUVDEUVD-2021-18550 No score
RIOT-OS 2021.01 before commit bc59d60be60dfc0a05def57d74985371e4f22d79 contains a buffer overflow which could allow attackers to obtain sensitive information.
- Record
EUVD-2021-18550- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-hgwj-h89r-w966 No score
RIOT-OS 2021.01 before commit bc59d60be60dfc0a05def57d74985371e4f22d79 contains a buffer overflow...
RIOT-OS 2021.01 before commit bc59d60be60dfc0a05def57d74985371e4f22d79 contains a buffer overflow which could allow attackers to obtain sensitive information.
- Record
GHSA-hgwj-h89r-w966- Weakness
- CWE-120
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-31663 is a high vulnerability (CVSS 7.5) in Riot-os Riot, published June 18, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.62%, the 76th percentile. No source names a fixed version.