CVE-2024-36587

System privilege escalation via replaceable service binary

Published Jun 13, 2024 · Updated Aug 2, 2024

Privilege escalation in DNSCrypt dnscrypt-proxy 2.0.0alpha9 through 2.1.5 allows local users to execute code as root or LocalSystem. The service-install path leaves the registered dnscrypt-proxy executable replaceable by nonprivileged users, so the service launches substituted code with its elevated account. Exploitation requires a service installation, local write access to the binary or its directory, and a later service restart such as a reboot.

CVSS severity7.8
High
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in DNSCrypt dnscrypt-proxy 2.0.0alpha9 through 2.1.5 allows local users to execute code as root or LocalSystem. The service-install path leaves the registered dnscrypt-proxy executable replaceable by nonprivileged users, so the service launches substituted code with its elevated account. Exploitation requires a service installation, local write access to the binary or its directory, and a later service restart such as a reboot.

The record

CVE
CVE-2024-36587
Published
Jun 13, 2024
Updated
Aug 2, 2024
Vendor
DNSCrypt
Product
dnscrypt-proxy
Classifications
CWE-266, T1574.010
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 13, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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=v2.0.0alpha9 <=v2.1.5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

DNSCrypt · dnscrypt-proxyversion=v2.0.0alpha9 <=v2.1.5

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/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 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-266Incorrect Privilege Assignment
T1574.010Hijack Execution Flow: Services File Permissions Weakness

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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