What is the CVSS score of CVE-2026-0777?

CVE-2026-0777 has a CVSS 3.0 base score of 7.8 (High). CVSS vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

How to fix or mitigate CVE-2026-0777?

Within 24 hours: Inventory all XMind installations across the organization and restrict usage to essential personnel only. Within 7 days: Disable XMind's attachment feature through group policy or equivalent controls, educate users not to open attachments from untrusted sources, and implement email filtering rules to block XMind files. Within 30 days: Monitor vendor advisories for patch availability, evaluate alternative tools without this vulnerability, and conduct a risk assessment to determine if XMind remains acceptable in the security posture.

CVE-2026-0777

HIGH

Product UI does not Warn User of Unsafe Actions (CWE-356)

2026-02-20 zdi-disclosures@trendmicro.com

RCE

7.8

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

7.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:04 vuln.today

CVE Published

Feb 20, 2026 - 22:16 nvd

HIGH 7.8

DescriptionCVE.org

Xmind Attachment Insufficient UI Warning Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Xmind. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the handling of attachments. When opening an attachment, the user interface fails to warn the user of unsafe actions. An attacker can leverage this vulnerability to execute code in the context of current user. Was ZDI-CAN-26034.

AnalysisAI

Xmind fails to display adequate security warnings when users open file attachments, enabling remote code execution with the privileges of the current user. An attacker can exploit this by tricking users into opening malicious files or visiting crafted pages, with the unsafe action proceeding without proper user notification. No patch is currently available.

Technical ContextAI

The specific flaw exists within the handling of attachments. When opening an attachment, the user interface fails to warn the user of unsafe actions. An attacker can leverage this vuln