Service interruption via out-of-bounds driver read
Published Oct 8, 2024 · Updated Aug 19, 2026
An out-of-bounds read in the Microsoft Windows Mobile Broadband Driver allows adjacent unauthenticated attackers to interrupt affected systems. Microsoft identifies improper input validation leading to an out-of-bounds read in the driver but has not disclosed the malformed input or code path. Exploitation requires adjacent-network access, needs no privileges or user interaction, and affects availability without reported data exposure or modification.
Summary
What happened
An out-of-bounds read in the Microsoft Windows Mobile Broadband Driver allows adjacent unauthenticated attackers to interrupt affected systems. Microsoft identifies improper input validation leading to an out-of-bounds read in the driver but has not disclosed the malformed input or code path. Exploitation requires adjacent-network access, needs no privileges or user interaction, and affects availability without reported data exposure or modification.
The record
- CVE
- CVE-2024-43557
- Published
- Oct 8, 2024
- Updated
- Aug 19, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-125, CWE-20, T1499
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 8, 2024CVE publishedPublication date reported by the CVE source.
- Aug 19, 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 <10.0.17763.6414
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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Technologies
Your stack
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Your stack
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