CVE-2019-3694Public exploit

Local root escalation via post-install link following

Published Jan 24, 2020 · Updated Sep 17, 2024

Symlink following in affected munin packages for openSUSE Factory and Leap 15.1 allows local users with munin access to gain root. The root-run RPM post-install script applies ownership changes to wildcarded log files and recursively owned directories, following attacker-created symbolic or hard links to arbitrary root-owned files. Control of the munin account and a package reinstall are required; exploitation transfers ownership of a chosen privileged file and enables root escalation.

CVSS severity7.7
High
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Symlink following in affected munin packages for openSUSE Factory and Leap 15.1 allows local users with munin access to gain root. The root-run RPM post-install script applies ownership changes to wildcarded log files and recursively owned directories, following attacker-created symbolic or hard links to arbitrary root-owned files. Control of the munin account and a package reinstall are required; exploitation transfers ownership of a chosen privileged file and enables root escalation.

The record

CVE
CVE-2019-3694
Published
Jan 24, 2020
Updated
Sep 17, 2024
Vendor
OpenSUSE
Product
openSUSE Leap
Classifications
CWE-59, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 24, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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=munin <=2.0.40-lp151.1.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

OpenSUSE · openSUSE Leapversion=munin <=2.0.40-lp151.1.1
OpenSUSE · openSUSE Factoryversion=munin <=2.0.49-4.2

Published CVSS scores

7.2NIST NVDAV:L/AC:L/Au:N/C:C/I:C/A:C
7.7SUSECVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
7.8NIST NVDCVSS: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.

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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-59Improper Link Resolution Before File Access ('Link Following')
T1068Exploitation for Privilege Escalation

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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