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CVE-2025-7118— UTT HiPER 840G formPictureUrl buffer overflow

Quick assessment

Affected
UTT HiPER 840G
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

UTT HiPER 840G是中国艾泰（UTT）公司的一款千兆企业级高性能路由器。 UTT HiPER 840G 3.1.1-190328及之前版本存在安全漏洞，该漏洞源于文件/goform/formPictureUrl中参数importpictureurl处理不当，可能导致缓冲区溢出。

CVSS 8.8 · High EPSS 1.00% · P62
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I. Basic Information for CVE-2025-7118

Vulnerability Information
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Vulnerability Title
UTT HiPER 840G formPictureUrl buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability, which was classified as critical, has been found in UTT HiPER 840G up to 3.1.1-190328. This issue affects some unknown processing of the file /goform/formPictureUrl. The manipulation of the argument importpictureurl leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
UTT HiPER 840G 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
UTT HiPER 840G是中国艾泰（UTT）公司的一款千兆企业级高性能路由器。 UTT HiPER 840G 3.1.1-190328及之前版本存在安全漏洞，该漏洞源于文件/goform/formPictureUrl中参数importpictureurl处理不当，可能导致缓冲区溢出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
UTT HiPER 840G 3.1.1-190328 -

II. Public POCs for CVE-2025-7118

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 6066 chars
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III. Intelligence Information for CVE-2025-7118

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Proof of Concept for CVE-2025-7118 (1)

Other References for CVE-2025-7118 (1)

Same Patch Batch · UTT · 2025-07-07 · 3 CVEs total

CVE-2025-7116 8.8 HIGH UTT 进取 750W Fast_wireless_conf buffer overflow
CVE-2025-7117 8.8 HIGH UTT HiPER 840G websWhiteList buffer overflow

IV. Related Vulnerabilities

Same product: HiPER 840G
Same vendor: UTT
Same weakness: CWE-120

V. Comments for CVE-2025-7118

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