SB2026091564 - Multiple vulnerabilities in uftpd

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Main Vulnerability Database SB2026091564

SB2026091564 - Multiple vulnerabilities in uftpd

Published: September 15, 2026

Security Bulletin ID SB2026091564
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Integer underflow (CVE-ID: N/A)

CWE-ID: CWE-191 - Integer underflow

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to integer underflow in parse_RWRQ when processing a 2-byte RRQ or WRQ UDP packet. A remote attacker can send a 2-byte RRQ or WRQ UDP packet to cause a denial of service.


2) NULL pointer dereference (CVE-ID: N/A)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to a null pointer dereference in handle_DATA when handling a DATA packet with no preceding WRQ. A remote attacker can send a DATA packet without a preceding WRQ to cause a denial of service.


Remediation

Install update from vendor's website.

References