Authenticated memory disclosure via alias format string
Published Jun 16, 2026 · Updated Jun 16, 2026
Format-string injection in Moxa NPort W2150A/W2250A device servers allows remote authenticated users to disclose process memory. The Serial Param page passes the attacker-controlled alias value to a formatting operation without adequate validation, so format specifiers expose memory contents and addresses. Administrative web access is required; firmware through 1.5 on W4 models and through 2.3 on earlier models is affected, and disclosed addresses can weaken ASLR.
Summary
What happened
Format-string injection in Moxa NPort W2150A/W2250A device servers allows remote authenticated users to disclose process memory. The Serial Param page passes the attacker-controlled alias value to a formatting operation without adequate validation, so format specifiers expose memory contents and addresses. Administrative web access is required; firmware through 1.5 on W4 models and through 2.3 on earlier models is affected, and disclosed addresses can weaken ASLR.
The record
- CVE
- CVE-2026-10828
- Published
- Jun 16, 2026
- Updated
- Jun 16, 2026
- Vendor
- Moxa
- Product
- NPort W2150A-W4/W2250A-W4 Series
- Classifications
- CWE-134, CAPEC-135, T1190
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Jun 16, 2026CVE publishedPublication date reported by the CVE source.
- Jun 16, 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?
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- Affected versionversion=1.0 <=1.5
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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