cve.bz

CVE-2020-5204

8.8 highEPSS 1.1%

High (8.8) in troglobit uftpd. EPSS 1.1% chance of exploitation in the next 30 days.

In uftpd before 2.11, there is a buffer overflow vulnerability in handle_PORT in ftpcmd.c that is caused by a buffer that is 16 bytes large being filled via sprintf() with user input based on the format specifier string %d.%d.%d.%d. The 16 byte size is correct for valid IPv4 addresses (len('255.255.255.255') == 16), but the format specifier %d allows more than 3 digits. This has been fixed in version 2.11

Severity

CVSS 3.1

8.8 high
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
1.1% chance of exploitation in the next 30 days; higher than 65% of CVEs (scores of 2026-10-31)
CWEs
CWE-120, CWE-121
Published
Modified
Record from
the NVD, synced

Affected

References

Check your stackJSON