Authenticated code execution via unchecked timestart copy
Published Jan 5, 2026 · Updated Jan 5, 2026
Buffer overflow in UTT 进取 520W 1.7.7-180627 allows remote authenticated users to execute code or crash the router. The /goform/ConfigAdvideo handler copies attacker-controlled timestart data with strcpy into a fixed destination without checking its length. Low-privileged web access is required, and the public request demonstrates a service interrupt; arbitrary code execution is reported but not demonstrated by that artifact.
Summary
What happened
Buffer overflow in UTT 进取 520W 1.7.7-180627 allows remote authenticated users to execute code or crash the router. The /goform/ConfigAdvideo handler copies attacker-controlled timestart data with strcpy into a fixed destination without checking its length. Low-privileged web access is required, and the public request demonstrates a service interrupt; arbitrary code execution is reported but not demonstrated by that artifact.
The record
- CVE
- CVE-2025-15462
- Published
- Jan 5, 2026
- Updated
- Jan 5, 2026
- Vendor
- Shanghai Aitai Technology Co., Ltd.
- Product
- 进取 520W
- Classifications
- CWE-119, CWE-120, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 5, 2026CVE publishedPublication date reported by the CVE source.
- Jan 5, 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=1.7.7-180627
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
- ConfigAdvideo timestart overflow HTTP proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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