Authenticated router crash via unchecked strcpy
Published Dec 29, 2025 · Updated Dec 29, 2025
Buffer overflow in D-Link DWR-M920 1.1.50 and earlier allows remote authenticated users to crash the router via a crafted request. The sub_423848 handler for /boafrm/formParentControl copies the submit-url parameter into byte_4ECC48 with strcpy without checking its length. A valid web-interface session is required, and the published proof of concept corrupts memory and triggers a crash when the management page is revisited.
Summary
What happened
Buffer overflow in D-Link DWR-M920 1.1.50 and earlier allows remote authenticated users to crash the router via a crafted request. The sub_423848 handler for /boafrm/formParentControl copies the submit-url parameter into byte_4ECC48 with strcpy without checking its length. A valid web-interface session is required, and the published proof of concept corrupts memory and triggers a crash when the management page is revisited.
The record
- CVE
- CVE-2025-15193
- Published
- Dec 29, 2025
- Updated
- Dec 29, 2025
- Vendor
- D-Link
- Product
- DWR-M920
- Classifications
- CWE-120, CWE-119, T1210
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 29, 2025CVE publishedPublication date reported by the CVE source.
- Dec 29, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.1.0
- Affected versionversion=1.1.1
- Affected versionversion=1.1.10
- Affected versionversion=1.1.11
- Affected versionversion=1.1.12
- Affected versionversion=1.1.13
- Affected versionversion=1.1.14
- Affected versionversion=1.1.15
- Affected versionversion=1.1.16
- Affected versionversion=1.1.17
- Affected versionversion=1.1.18
- Affected versionversion=1.1.19
- Affected versionversion=1.1.2
- Affected versionversion=1.1.20
- Affected versionversion=1.1.21
- Affected versionversion=1.1.22
- Affected versionversion=1.1.23
- Affected versionversion=1.1.24
- Affected versionversion=1.1.25
- Affected versionversion=1.1.26
- Affected versionversion=1.1.27
- Affected versionversion=1.1.28
- Affected versionversion=1.1.29
- Affected versionversion=1.1.3
- Affected versionversion=1.1.30
- Affected versionversion=1.1.31
- Affected versionversion=1.1.32
- Affected versionversion=1.1.33
- Affected versionversion=1.1.34
- Affected versionversion=1.1.35
- Affected versionversion=1.1.36
- Affected versionversion=1.1.37
- Affected versionversion=1.1.38
- Affected versionversion=1.1.39
- Affected versionversion=1.1.4
- Affected versionversion=1.1.40
- Affected versionversion=1.1.41
- Affected versionversion=1.1.42
- Affected versionversion=1.1.43
- Affected versionversion=1.1.44
- Affected versionversion=1.1.45
- Affected versionversion=1.1.46
- Affected versionversion=1.1.47
- Affected versionversion=1.1.48
- Affected versionversion=1.1.49
- Affected versionversion=1.1.5
- Affected versionversion=1.1.50
- Affected versionversion=1.1.6
- Affected versionversion=1.1.7
- Affected versionversion=1.1.8
- Affected versionversion=1.1.9
What conditions does exploitation require?
What is affected?
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
- DWR-M920 formParentControl proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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