CVE-2025-53811

TCC permission abuse via enabled RunAsNode fuse

Published Aug 26, 2025 · Updated Aug 26, 2025

Incorrect default permissions in Mosh-Pro 1.3.6 and earlier allow local users to execute code with the app's inherited TCC access. The macOS application leaves the RunAsNode fuse enabled, so locally invoked code runs in a process that retains the application's existing TCC grants. Access is limited to those grants; requests for other protected resources display approval prompts under the application's name, which can disguise malicious intent.

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 Mosh-Pro 1.3.6 and earlier allow local users to execute code with the app's inherited TCC access. The macOS application leaves the RunAsNode fuse enabled, so locally invoked code runs in a process that retains the application's existing TCC grants. Access is limited to those grants; requests for other protected resources display approval prompts under the application's name, which can disguise malicious intent.

The record

CVE
CVE-2025-53811
Published
Aug 26, 2025
Updated
Aug 26, 2025
Vendor
Airtight Interactive
Product
Mosh-Pro
Classifications
CWE-276, CAPEC-122, T1548
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?

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  1. Affected versionversion=1.3.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Airtight Interactive · Mosh-Proversion=1.3.2

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 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
CAPEC-122Privilege Abuse
T1548Abuse Elevation Control Mechanism

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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