CVE-2019-25590
CWE-1282Published: March 22, 2026· Updated: Mar 23, 2026
Official Description
Axessh 4.2 contains a denial of service vulnerability in the logging configuration that allows local attackers to crash the application by supplying an excessively long string in the log file name field. Attackers can enable session logging, paste a buffer of 500 or more characters into the log file name parameter, and trigger a crash when establishing a telnet connection.
Technical Analysis
CVE-2019-25590 requires local access, meaning attackers must already have a foothold on the target system.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 6.2.
CVSS v3.1 Vector Breakdown
Exploit & PoC Resources
All References (4)
Quick Facts
Related CVEs (CWE-1282)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2019-25590 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts