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Fencer Vulns
high 7.9

CVE-2024-29188 json

Malicious directory junction can cause WiX RemoveFoldersEx to possibly delete elevated files

published 2024-03-24 2 y ago modified 2026-09-10 1 mo ago also EUVD-2024-0956 , GHSA-jx4p-m4wm-vvjg

cvss
7.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 15%
public exploits
0
none known

Summary

WiX toolset lets developers create installers for Windows Installer, the Windows installation engine. The custom action behind WiX's `RemoveFolderEx` functionality could allow a standard user to delete protected directories. `RemoveFolderEx` deletes an entire directory tree during installation or uninstallation. It does so by recursing every subdirectory starting at a specified directory and adding each subdirectory to the list of directories Windows Installer should delete. If the setup author instructed `RemoveFolderEx` to delete a per-user folder from a per-machine installer, an attacker could create a directory junction in that per-user folder pointing to a per-machine, protected directory. Windows Installer, when executing the per-machine installer after approval by an administrator, would delete the target of the directory junction. This vulnerability is fixed in 3.14.1 and 4.0.5.

Patch / fix

  • nuget wix 3.14.1, 4.0.5
  • nuget WixToolset.Util.wixext 4.0.5
  • firegiant wix_toolset 3.14.1, 4.0.5
  • wixtoolset wix 3.14.1, 4.0.5
  • firegiant wix_toolset_util 4.0.5
  • wixtoolset util 4.0.5

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:H
GitHub 3.1 7.9 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:H

Affected packages

ecosystem package affected fixed in
nuget wix
<3.14.1
>=4.0.0, <4.0.5
3.14.1
4.0.5
nuget WixToolset.Util.wixext
<4.0.5
4.0.5

Affected products

  • wixtoolset issues

Classification

Weakness
  • CWE-59 Improper Link Resolution Before File Access

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.