MDT AutoSave Relative Path Traversal

published 2022-04-01 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-19670

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.1%; EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits: 0; none known

An attacker could utilize a function in MDT AutoSave versions prior to v6.02.06 that permits changing a designated path to another path and traversing the directory, allowing the replacement of an existing file with a malicious file.

Patch / fix

fixed in 2

MDT Software MDT AutoSave 6.02.06, 7.04
MDT Software AutoSave for System Platform (A4SP) 4.01

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-21-189-02 updated 2021-07-08 cvss 7.5

MDT AutoSave

MDT Software A4SP 5 MDT Software AutoSave for System Platform (A4SP) < 4.01 MDT Software MDT AutoSave >= 7.00, <= 7.04, < 6.02.06
affected: vendor fix, mitigation “A4SP 4.x version: Version 4.01 (Released June 2021)” mdt-software.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 18 mo ago (2025-04-16)

Exploit prediction

1.10% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:N/I:P/A:N

Affected products

MDT Software MDT AutoSave
MDT Software AutoSave for System Platform (A4SP)
MDT Software A4SP

Classification

Weakness

CWE-23 Relative Path Traversal
CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

cisa.gov /uscert/ics/advisories/icsa-21-189-02
mitigation, third-party-advisory, us-government-resource

Sources

CVE List CVE-2021-32949
NVD CVE-2021-32949

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.

Summary