Vulnerability record · CVE-2021-28847 · published 3 June 2021

CVE-2021-28847: Mobatek mobaxterm vulnerability

Mobatek · Mobaxterm

MobaXterm before 21.0 allows remote servers to cause a denial of service (Windows GUI hang) via tab title change requests that are sent repeatedly at high speed, which results in many SetWindowTextA or SetWindowTextW calls.

7.5 CVSS 3.1 High EPSS 1.4% · top 28.1%

7.5CVSS 3.1 base score, v2 5.0

1.4%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

4References

17 Jun 2026Last modified by NVD

Description

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Mobaxterm Mobatek

References

Link	Tags
https://mobaxterm.mobatek.net/download-home-edition.html	ProductRelease NotesVendor Advisory
https://mobaxterm.mobatek.net/preview.html	Release NotesVendor Advisory
https://mobaxterm.mobatek.net/download-home-edition.html	ProductRelease NotesVendor Advisory
https://mobaxterm.mobatek.net/preview.html	Release NotesVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2019-7690Mobatek mobaxterm vulnerabilityIn MobaTek MobaXterm Personal Edition v11.1 Build 3860, the SSH private key and its password can be retrieved from process memory for the lifetime of…EPSS 3.2%13 May 2019 9.8CVE-2017-15376Mobatek mobaxterm code injection vulnerabilityThe TELNET service in Mobatek MobaXterm 10.4 does not require authentication, which allows remote attackers to execute arbitrary commands via TCP por…EPSS 3.8%16 Oct 2017 9.1CVE-2022-38337Mobatek mobaxterm hard-coded credentials vulnerabilityWhen aborting a SFTP connection, MobaXterm before v22.1 sends a hardcoded password to the server. The server treats this as an invalid login attempt …EPSS 0.76%6 Dec 2022 8.8CVE-2019-16305Mobatek mobaxterm command injection vulnerabilityIn MobaXterm 11.1 and 12.1, the protocol handler is vulnerable to command injection. A crafted link can trigger a popup asking whether the user wants…EPSS 6.7%14 Sep 2019 8.8CVE-2019-13475Mobatek mobaxterm argument injection vulnerabilityIn MobaXterm 11.1, the mobaxterm: URI handler has an argument injection vulnerability that allows remote attackers to execute arbitrary commands when…EPSS 4.1%9 Jul 2019 8.5CVE-2026-25866Mobatek mobaxterm unquoted search path vulnerabilityMobaXterm versions prior to 26.1 contain an uncontrolled search path element vulnerability. The application calls WinExec to execute Notepad++ withou…EPSS 0.18%9 Mar 2026 8.1CVE-2022-38336Mobatek mobaxterm improper authentication vulnerabilityAn access control issue in MobaXterm before v22.1 allows attackers to make connections to the server via the SSH or SFTP protocols without authentica…EPSS 0.85%6 Dec 2022 7.5CVE-2015-7244Mobatek mobaxterm improper access control vulnerabilityThe default configuration of the server in MobaXterm before 8.3 has a disabled Access Control setting and consequently does not require authenticatio…EPSS 5.0%4 Nov 2015

Source: NIST National Vulnerability Database (record CVE-2021-28847), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.