Authenticated remote code execution via AdminPassword decoding
Published May 11, 2026 · Updated May 11, 2026
Stack-based buffer overflow in D-Link DCS-935L 1.10.01 and earlier allows remote authenticated users to execute code via HNAP. SetDeviceSettings passes the hex-encoded AdminPassword value through AESDecrypt to a decoder that writes into a fixed-size stack buffer without checking the decoded length. Valid web administrator credentials and a crafted XML request are required; successful return-address overwrite runs MIPS code with root privileges on the camera.
Summary
What happened
Stack-based buffer overflow in D-Link DCS-935L 1.10.01 and earlier allows remote authenticated users to execute code via HNAP. SetDeviceSettings passes the hex-encoded AdminPassword value through AESDecrypt to a decoder that writes into a fixed-size stack buffer without checking the decoded length. Valid web administrator credentials and a crafted XML request are required; successful return-address overwrite runs MIPS code with root privileges on the camera.
The record
- CVE
- CVE-2026-8260
- Published
- May 11, 2026
- Updated
- May 11, 2026
- Vendor
- D-Link
- Product
- DCS-935L
- Classifications
- CWE-120, CWE-119, T1068
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- May 11, 2026CVE publishedPublication date reported by the CVE source.
- May 11, 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=1.10.01
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
- DCS-935L HNAP Service proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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