Authenticated router compromise via remoteIp stack overflow
Published Jun 8, 2025 · Updated Jun 9, 2025
Stack-based buffer overflow in Tenda AC15 15.03.05.19_multi allows remote authenticated users to corrupt memory via a crafted POST request. In formSetSafeWanWebMan, the remoteIp parameter from /goform/SetRemoteWebCfg is stored in a stack variable and passed to sub_B677C without an enforced length bound. Low-privilege access to the router management interface is required, and successful exploitation can compromise or interrupt its process.
Summary
What happened
Stack-based buffer overflow in Tenda AC15 15.03.05.19_multi allows remote authenticated users to corrupt memory via a crafted POST request. In formSetSafeWanWebMan, the remoteIp parameter from /goform/SetRemoteWebCfg is stored in a stack variable and passed to sub_B677C without an enforced length bound. Low-privilege access to the router management interface is required, and successful exploitation can compromise or interrupt its process.
The record
- CVE
- CVE-2025-5849
- Published
- Jun 8, 2025
- Updated
- Jun 9, 2025
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- AC15
- Classifications
- CWE-119, CWE-121, T1210
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 8, 2025CVE publishedPublication date reported by the CVE source.
- Jun 9, 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=15.03.05.19_multi
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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
- Tenda AC15 formSetSafeWanWebMan proof of conceptproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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