Authenticated service crash via unchecked ip6addr copy
Published Dec 29, 2025 · Updated Dec 29, 2025
Stack-based buffer overflow in D-Link DWR-M920 1.1.0 through 1.1.50 allows remote authenticated users to trigger a router crash. The sub_42261C function in /boafrm/formFilter passes the request's ip6addr value to strcpy without checking its length, overflowing stack buffer v79. A valid web-interface session and a crafted formFilter POST are required; the demonstrated consequence is a crash and service interruption.
Summary
What happened
Stack-based buffer overflow in D-Link DWR-M920 1.1.0 through 1.1.50 allows remote authenticated users to trigger a router crash. The sub_42261C function in /boafrm/formFilter passes the request's ip6addr value to strcpy without checking its length, overflowing stack buffer v79. A valid web-interface session and a crafted formFilter POST are required; the demonstrated consequence is a crash and service interruption.
The record
- CVE
- CVE-2025-15190
- Published
- Dec 29, 2025
- Updated
- Dec 29, 2025
- Vendor
- D-Link
- Product
- DWR-M920
- Classifications
- CWE-121, CWE-119, T1190
- 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
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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 formFilter crash 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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