PT-2026-7890 · Unknown · Open Tftp Server Multithreaded

Published 2026-02-12 · Updated 2026-02-13 · CVE-2025-67433

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Open TFTP Server MultiThreaded version 1.7

Description A heap buffer overflow exists in the processRequest() function of Open TFTP Server MultiThreaded. This issue can be triggered by sending a crafted DATA packet, potentially leading to a Denial of Service (DoS).

Recommendations Update to a newer version that contains a fix for this vulnerability. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

CVE-2025-67433

Affected Products

Open Tftp Server Multithreaded

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2025-67433 · Security Note
• https://gist.github.com/Hyobin/f1b7d48d29e60a378bb9c88ba8b8080a · Note
• https://sourceforge.net/projects/tftp-server/files/tftp%20server%20multithreaded · Note
• https://twitter.com/CVEnew/status/2022037612052013293 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2022130727479840891 · Twitter Post
• https://gist.github.com/transparencybeam/f1b7d48d29e60a378bb9c88ba8b8080a · Note