Physical information disclosure via integer underflow
Published Dec 10, 2024 · Updated Jun 9, 2026
Information disclosure in Microsoft Windows WwanSvc allows physically proximate attackers with low privileges to read sensitive memory. An integer underflow causes an out-of-bounds read, but Microsoft has not published the affected routine or input path. Exploitation requires physical access and low-privilege authentication; the bounded consequence is confidential data exposure.
Summary
What happened
Information disclosure in Microsoft Windows WwanSvc allows physically proximate attackers with low privileges to read sensitive memory. An integer underflow causes an out-of-bounds read, but Microsoft has not published the affected routine or input path. Exploitation requires physical access and low-privilege authentication; the bounded consequence is confidential data exposure.
The record
- CVE
- CVE-2024-49103
- Published
- Dec 10, 2024
- Updated
- Jun 9, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-191, CWE-125, T1005
- Attack vector
- physical
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 10, 2024CVE publishedPublication date reported by the CVE source.
- Jun 9, 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 <10.0.17763.6659
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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