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CVE-2026-121382— Netcore NBR100V2 auto_ac msg_aes_dec integer overflow

Quick assessment

Affected
Netcore NBR100V2
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.

经确认，Netcore NBR100V2 固件版本 1.3.240614.030928 存在一处安全漏洞。该问题影响 文件中的 函数。攻击者通过操纵该函数可触发整数溢出漏洞。此漏洞可被远程利用，且相关利用代码已在公开渠道披露，可能被恶意使用。厂商在漏洞披露初期已收到通知，但至今未作出任何回应。

CVSS 7.5 · High

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Netcore NBR100V2 1.3.240614.030928 affected
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I. Basic Information for CVE-2026-121382

Vulnerability Information
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Vulnerability Title
Netcore NBR100V2 auto_ac msg_aes_dec integer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was determined in Netcore NBR100V2 1.3.240614.030928. Affected by this issue is the function msg_aes_dec of the file /usr/bin/auto_ac. This manipulation causes integer overflow. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized. 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:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Netcore NBR100V2 1.3.240614.030928 cpe:2.3:a:netcore:nbr100v2:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-121382

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-121382

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Other References for CVE-2026-121382 (4)

IV. Related Vulnerabilities

Same product: NBR100V2
Same vendor: Netcore
Same weakness: CWE-190