CVE-2025-53813

Local code execution via enabled RunAsNode fuse

Published Aug 26, 2025 · Updated Aug 26, 2025

Incorrect default permissions in Nozbe before 2025.11 on macOS allow local users to execute code with Nozbe's existing TCC access. The packaged Electron binary leaves the RunAsNode fuse enabled, so ELECTRON_RUN_AS_NODE starts it as a Node.js process that runs attacker-supplied scripts. Exploitation requires local unprivileged access; code inherits only TCC permissions already granted to the app, while new access triggers a user prompt.

CVSS severity4.8
Medium
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect default permissions in Nozbe before 2025.11 on macOS allow local users to execute code with Nozbe's existing TCC access. The packaged Electron binary leaves the RunAsNode fuse enabled, so ELECTRON_RUN_AS_NODE starts it as a Node.js process that runs attacker-supplied scripts. Exploitation requires local unprivileged access; code inherits only TCC permissions already granted to the app, while new access triggers a user prompt.

The record

CVE
CVE-2025-53813
Published
Aug 26, 2025
Updated
Aug 26, 2025
Vendor
Nozbe
Product
Nozbe
Classifications
CWE-276, T1059.007
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 26, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 26, 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=0 <2025.11

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Nozbe · Nozbeversion=0 <2025.11

Published CVSS scores

4.8CERT.PLCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-276Incorrect Default Permissions
T1059.007Command and Scripting Interpreter: JavaScript/JScript

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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