CVE-2025-55037Network attack vector

Arbitrary command execution via crafted notifications

Published Sep 5, 2025 · Updated Sep 5, 2025

OS command injection in kujirahand TkEasyGUI before 1.0.22 allows remote attackers to execute arbitrary commands through crafted notification text. The popup_notify path inserts the message and title directly into AppleScript on macOS or a PowerShell here-string on Windows, allowing embedded syntax to escape the intended notification data. Exploitation requires an application to pass externally sourced message content into notifications; no authentication or user interaction is required.

CVSS severity9.3
Critical
EPSS probability2.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in kujirahand TkEasyGUI before 1.0.22 allows remote attackers to execute arbitrary commands through crafted notification text. The popup_notify path inserts the message and title directly into AppleScript on macOS or a PowerShell here-string on Windows, allowing embedded syntax to escape the intended notification data. Exploitation requires an application to pass externally sourced message content into notifications; no authentication or user interaction is required.

The record

CVE
CVE-2025-55037
Published
Sep 5, 2025
Updated
Sep 5, 2025
Vendor
kujirahand
Product
TkEasyGUI
Classifications
CWE-78, T1059.002, T1059.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 5, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 5, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=versions prior to v1.0.22

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

kujirahand · TkEasyGUIversion=versions prior to v1.0.22

Published CVSS scores

9.3JPCERT/CCCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8JPCERT/CCCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.002AppleScript
T1059.001PowerShell

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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