CVE-2021-20722

HIGH
7.8
CVSS Score
Published: May 24, 2021 at 03:20 AM UTC
Updated: October 7, 2026 at 09:17 PM UTC
2 products affected across 2 vendorsScansnap ManagerScansnap Manager

Using The installers of ScanSnap Manager and the Software Download Installer by FUJITSU LIMITED and PFU LIMITED?

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Severity
HIGH7.8
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

Untrusted search path vulnerability in the installers of ScanSnap Manager prior to versions V7.0L20 and the Software Download Installer prior to WinSSInst2JP.exe and WinSSInst2iX1500JP.exe allows an attacker to gain privileges and execute arbitrary code with the privilege of the user invoking the installer via a Trojan horse DLL in an unspecified directory.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 7.0l20*
Affected range stops below 7.0l20, so it looks safe — our inference, not a vendor statement
The installers of ScanSnap Manager prior to versions V7.0L20 and the Software Download Installer prior to WinSSInst2JP.exe and WinSSInst2iX1500JP.exe
Affected range stops below 7.0L20, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCThird Party Advisory
https://jvn.jp/en/jp/JVN65733194/index.html
x_refsource_MISCProductVendor Advisory
https://scansnap.fujitsu.com/global/dl/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-427

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