CVE-2020-1939

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-05-12 · updated 2026-06-17
Weakness: CWE-476

Description

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.

Affected products

Apache Software Foundation Apache NuttX RTOS: from 6.15 through 8.2

References

https://lists.apache.org/thread.html/re3adc65ff4d8d9c34e5bccba3941a28cbb0a47191c150df2727e101d%40%3Cdev.nuttx.apache.org%3E
https://lists.apache.org/thread.html/re3adc65ff4d8d9c34e5bccba3941a28cbb0a47191c150df2727e101d%40%3Cdev.nuttx.apache.org%3E

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