Unauthenticated stack disclosure via uninitialized reset header
Published Sep 10, 2024 · Updated Aug 10, 2026
Information disclosure in Microsoft Windows AllJoyn Router Service allows remote attackers to read 36 bytes of process stack data via UDP. SendRst initializes a separate buffer but passes an untouched ArdpHeader structure to qcc::SendTo when rejecting a malformed ARDP session. The AllJoyn Router Service must be active and accepting UDP traffic; it is generally stopped by default but can be activated through its named pipe.
Summary
What happened
Information disclosure in Microsoft Windows AllJoyn Router Service allows remote attackers to read 36 bytes of process stack data via UDP. SendRst initializes a separate buffer but passes an untouched ArdpHeader structure to qcc::SendTo when rejecting a malformed ARDP session. The AllJoyn Router Service must be active and accepting UDP traffic; it is generally stopped by default but can be activated through its named pipe.
The record
- CVE
- CVE-2024-38257
- Published
- Sep 10, 2024
- Updated
- Aug 10, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-908, T1210
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 10, 2024CVE publishedPublication date reported by the CVE source.
- Aug 10, 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=10.0.17763.0 <10.0.17763.6293
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
- Cisco Talos ARDP proof of conceptfunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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