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CVE-2026-26731

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.

TOTOLINK A3002RU是中国吉翁电子（TOTOLINK）公司的一款无线路由器产品。 TOTOLINK A3002RU V2.1.1-B20211108.1455版本存在缓冲区错误漏洞，该漏洞源于formDnsv6函数中的routernamer参数存在栈缓冲区溢出，可能导致执行任意代码。

AI Predicted 9.8 Difficulty: Moderate EPSS 1.26% · P69

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-2026-26731

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
TOTOLINK A3002RU V2.1.1-B20211108.1455 was discovered to contain a stack-based buffer overflow via the routernamer`parameter in the formDnsv6 function.
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
TOTOLINK A3002RU 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TOTOLINK A3002RU是中国吉翁电子（TOTOLINK）公司的一款无线路由器产品。 TOTOLINK A3002RU V2.1.1-B20211108.1455版本存在缓冲区错误漏洞，该漏洞源于formDnsv6函数中的routernamer参数存在栈缓冲区溢出，可能导致执行任意代码。
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-2026-26731

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III. Intelligence Information for CVE-2026-26731

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Proof of Concept for CVE-2026-26731 (1)

Same Patch Batch · n/a · 2026-02-17 · 17 CVEs total

CVE-2026-2623 6.3 MEDIUM Blossom File Upload BLOSManager.java put path traversal
CVE-2026-2622 3.5 LOW Blossom Article Title ArticleController.java content cross site scripting
CVE-2026-26736 TOTOLINK A3002RU 缓冲区错误漏洞
CVE-2026-26732 TOTOLINK A3002RU 缓冲区错误漏洞
CVE-2024-55270 PHPGurukul Student Management System 安全漏洞
CVE-2024-55271 PHPGurukul Gym Management System 安全漏洞
CVE-2025-59793 Rocket TRUfusion Enterprise 安全漏洞
CVE-2025-32355 Rocket TRUfusion Enterprise 安全漏洞
CVE-2025-70829 datart 安全漏洞
CVE-2025-70830 datart 安全漏洞
CVE-2025-70828 datart 安全漏洞
CVE-2025-70846 aidigu 安全漏洞
CVE-2025-70397 JIZHICMS（极致CMS） 安全漏洞
CVE-2025-67905 Malwarebytes AdwCleaner 安全漏洞
CVE-2025-67102 Jorani 安全漏洞
CVE-2025-65753 Gryphon Guardian WiFi access point 安全漏洞

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-26731

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