What is CVE-2019-25741?

CVE-2019-25741 is a critical-severity vulnerability in Mobatek Mobaxterm, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2026-06-04.

How severe is CVE-2019-25741?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Mobatek Mobaxterm

CVE-2019-25741

Mobatek MobaXterm 12.1 contains a structured exception handling (SEH) based buffer overflow vulnerability in the username field of session files that allows remote attackers to execute arbitrary code. Attackers can craft a malicious MobaXt…

Vulnerability class: Buffer Overflow

EPSS: 0.002 (39.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Mobatek Mobaxterm — versions 12.1

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

disclosure@vulncheck.com (exploit)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2019-25741?: CVE-2019-25741 is a critical-severity vulnerability in Mobatek Mobaxterm, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2026-06-04.
How severe is CVE-2019-25741?: Critical severity. CVSS v3 base score is 9.8 out of 10.