Integer overflow in Apache Nuttx
CVE-2021-26461
Apache Nuttx Versions prior to 10.1.0 are vulnerable to integer wrap-around in functions malloc, realloc and memalign. This improper memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or a remote code injection/execution.
Vulnerability class: Integer Overflow
EPSS: 0.050 (91.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Apache Nuttx
- Apache Software Foundation Nuttx — versions Apache NuttX
Weakness classification (CWE)
References
- security@apache.org (Mailing List, x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-26461?
- CVE-2021-26461 is a critical-severity vulnerability in Apache Nuttx, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2021-06-21.
- How severe is CVE-2021-26461?
- Critical severity. CVSS v3 base score is 9.8 out of 10.