CVE-2025-13131Public exploit

Local privilege escalation via writable service binary

Published Nov 13, 2025 · Updated Nov 13, 2025

Incorrect default permissions in the Sonarr 4.0.15.2940 Windows service allow local users to gain service-account privileges via binary replacement. The ACL on C:\ProgramData\Sonarr\bin\Sonarr.Console.exe permits a low-privileged user to replace the executable that the service launches. Elevated execution requires the service to run under a highly privileged account and the replaced binary to run after a restart or reboot.

CVSS severity8.5
High
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 the Sonarr 4.0.15.2940 Windows service allow local users to gain service-account privileges via binary replacement. The ACL on C:\ProgramData\Sonarr\bin\Sonarr.Console.exe permits a low-privileged user to replace the executable that the service launches. Elevated execution requires the service to run under a highly privileged account and the replaced binary to run after a restart or reboot.

The record

CVE
CVE-2025-13131
Published
Nov 13, 2025
Updated
Nov 13, 2025
Vendor
Sonarr
Product
Sonarr
Classifications
CWE-276, CWE-266, T1574.010
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 13, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 13, 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=4.0.15.2940

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Sonarr · Sonarrversion=4.0.15.2940

Published CVSS scores

8.5VulDBCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X
6.8VulDBAV:L/AC:L/Au:S/C:C/I:C/A:C/E:ND/RL:ND/RC:C
7.8VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:C
7.8VulDBCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:C

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 exploitPublished

Weakness, pattern, technique

CWE-276Incorrect Default Permissions
CWE-266Incorrect Privilege Assignment
T1574.010Services File Permissions Weakness

Public exploit references

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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