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CVE-2026-52191

Quick assessment

Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

UTT nv518G是中国UTT公司的一款企业级网络交换机。 UTT nv518G nv518GV3v3.2.7-210919-161313版本存在缓冲区溢出漏洞，该漏洞源于gohead/sub_444C8C组件存在缓冲区溢出，可能导致远程攻击者造成拒绝服务。

AI Predicted 7.5 Difficulty: Easy EPSS 0.63% · P50

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
n/a n/a n/a affected
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I. Basic Information for CVE-2026-52191

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Buffer Overflow vulnerability in UTT nv518G nv518GV3v3.2.7-210919-161313 allows a remote attacker to cause a denial of service via the gohead/sub_444C8C component
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
UTT nv518G 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
UTT nv518G是中国UTT公司的一款企业级网络交换机。 UTT nv518G nv518GV3v3.2.7-210919-161313版本存在缓冲区溢出漏洞，该漏洞源于gohead/sub_444C8C组件存在缓冲区溢出，可能导致远程攻击者造成拒绝服务。
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
- n/a n/a -

II. Public POCs for CVE-2026-52191

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-52191

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Proof of Concept for CVE-2026-52191 (1)

Vendor Pages for CVE-2026-52191 (1)

Same Patch Batch · n/a · 2026-07-02 · 9 CVEs total

CVE-2026-52187 UTT nv518G 缓冲区溢出漏洞
CVE-2026-52192 UTT nv518G 拒绝服务漏洞
CVE-2026-52188 UTT nv518G 缓冲区溢出漏洞
CVE-2026-52189 UTT nv518G 缓冲区溢出漏洞
CVE-2026-38968 NTOP ntopng 安全漏洞
CVE-2026-38971 ArduPilot Project 安全漏洞
CVE-2026-38972 rizonesoft notepad3 安全漏洞
CVE-2026-38970 pdfcpu 安全漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a