Privilege escalation via AppContainer escape to privileged RPC
Published Nov 12, 2024 · Updated Aug 4, 2026
Improper authentication in Microsoft Windows Task Scheduler allows local users to escape AppContainer isolation and elevate privileges. Task Scheduler permits an attacker-provided local application to cross its AppContainer boundary and reach privileged RPC functions, but Microsoft has not identified the faulty validation locus. A low-privileged user must run code locally; successful exploitation breaks the application's sandbox without user interaction.
Summary
What happened
Improper authentication in Microsoft Windows Task Scheduler allows local users to escape AppContainer isolation and elevate privileges. Task Scheduler permits an attacker-provided local application to cross its AppContainer boundary and reach privileged RPC functions, but Microsoft has not identified the faulty validation locus. A low-privileged user must run code locally; successful exploitation breaks the application's sandbox without user interaction.
The record
- CVE
- CVE-2024-49039
- Published
- Nov 12, 2024
- Updated
- Aug 4, 2026
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-287, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Nov 12, 2024CVE publishedPublication date reported by the CVE source.
- Aug 4, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.10240.0 <10.0.10240.20826
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Reported exploitation
- CISA Known Exploited Vulnerabilities Catalog listingknown exploited catalog
Technologies
Your stack
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Your stack
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