CVE-2021-31663 json
RIOT-OS 2021.01 before commit bc59d60be60dfc0a05def57d74985371e4f22d79 contains a buffer overflow which could allow attackers to obtain sen…
published 2021-06-18 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-18550
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.6%
- EPSS 1.6% chance of exploitation in 30 days, percentile 76%
- public exploits
- 0
- none known
Summary
RIOT-OS 2021.01 before commit bc59d60be60dfc0a05def57d74985371e4f22d79 contains a buffer overflow which could allow attackers to obtain sensitive information.
Patch / fix
- github.com/RIOT-OS/RIOT@bc59d60 commit
- github.com/RIOT-OS/RIOT#15929 pull request
Exploit prediction
1.62% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-120 Buffer Copy without Checking Size of Input
References
-
github.com
/RIOT-OS/RIOT/pull/15929
third-party-advisory
-
github.com
/RIOT-OS/RIOT/commit/bc59d60be60dfc0a05def57d74985371e4f22d79
patch, third-party-advisory
-
github.com
/RIOT-OS/RIOT/issues/15927
third-party-advisory
Sources
- CVE List CVE-2021-31663
- NVD CVE-2021-31663
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