CVE-2019-25590

Axessh 4.2 Denial of Service via Log File Name

CVSS 6.9 MEDIUMEPSS 0.2%CWE-1282

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.9EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

22 Mar 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

Labf · Axessh

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References

https://www.exploit-db.com/exploits/46858 https://www.vulncheck.com/advisories/axessh-denial-of-service-via-log-file-name http://www.labf.com http://www.labf.com/download/axessh.exe