NULL pointer dereference in Apache Nuttx

CVE-2020-1939

The Apache NuttX (Incubating) project provides an optional separate "apps" repository which contains various optional components and example programs. One of these, ftpd, had a NULL pointer dereference bug. The NuttX RTOS itself is not affected. Users of the optional apps repository are affected only if they have enabled ftpd. Versions 6.15 to 8.2 are affected.

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.026 (84.5th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-1939: held from 0.025 to 0.026.

EPSS over last 30 days · oldest: 0.025 · newest: 0.026 · change: +0.001

Affected products

  • Apache Nuttx
  • Apache Nuttx (Incubating) — versions Apache NuttX (incubating) 6.15 to 8.2

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-1939?
CVE-2020-1939 is a critical-severity vulnerability in Apache Nuttx, classified under NULL Pointer Dereference. CVSS score: 9.8/10. Published 2020-05-12.
How severe is CVE-2020-1939?
Critical severity. CVSS v3 base score is 9.8 out of 10.