HOMEVULNERABILITIESCVE-2021-20722
HIGH

CVE-2021-20722

CWE-427Published: May 24, 2021· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2021-20722 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

fujitsu1 product(s)
scansnap manager
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://jvn.jp/en/jp/JVN65733194/index.html
ADVISORYhttps://scansnap.fujitsu.com/global/dl/
ADVISORYhttps://jvn.jp/en/jp/JVN65733194/index.html
ADVISORYhttps://scansnap.fujitsu.com/global/dl/

All References (4)

→
https://jvn.jp/en/jp/JVN65733194/index.htmlThird Party Advisory
→
https://scansnap.fujitsu.com/global/dl/Product · Vendor Advisory
→
https://jvn.jp/en/jp/JVN65733194/index.htmlThird Party Advisory
→
https://scansnap.fujitsu.com/global/dl/Product · Vendor Advisory

Quick Facts

CVE IDCVE-2021-20722
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-427
CISA KEVNo
Affected1 vendor(s)
PublishedMay 24, 2021

Related CVEs (CWE-427)

CVE-2025-4981
9.9
CVE-2022-24955
9.8
CVE-2019-7653
9.8
CVE-2020-10515
9.8
CVE-2017-3097
9.8
CVE-2018-12805
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-20722 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2021-20722·NVD