CVE-2026-29646
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.
NEMU是XiangShan开源的一个用于教学的全系统模拟器。 NEMU 55295c4之前版本存在安全漏洞，该漏洞源于启用RVH扩展时对sie CSR的写入处理不当，可能影响机器级中断使能状态，导致拒绝服务或特权边界违规。
Possible ATT&CK Techniques 1 AI
T1055 · Process Injection
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I. Basic Information for CVE-2026-29646
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In OpenXiangShan NEMU prior to 55295c4, when running with RVH (Hypervisor extension) enabled, a VS-mode guest write to the supervisor interrupt-enable CSR (sie) may be handled incorrectly and can influence machine-level interrupt enable state (mie). This breaks privilege/virtualization isolation and can lead to denial of service or privilege-boundary violation in environments relying on NEMU for correct interrupt virtualization.
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
NEMU 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NEMU是XiangShan开源的一个用于教学的全系统模拟器。 NEMU 55295c4之前版本存在安全漏洞，该漏洞源于启用RVH扩展时对sie CSR的写入处理不当，可能影响机器级中断使能状态，导致拒绝服务或特权边界违规。
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-2026-29646
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Patches & Fixes for CVE-2026-29646 (1)
Same Patch Batch · n/a · 2026-04-20 · 21 CVEs total
| CVE-2026-6650 | 4.7 MEDIUM | Z-BlogPHP ZBA File app_upload.php UnPack unrestricted upload |
| CVE-2026-6591 | 4.3 MEDIUM | ComfyUI LoadImage Node folder_paths.py folder_paths.get_annotated_filepath path traversal |
| CVE-2026-6590 | 4.3 MEDIUM | ComfyUI Model Preview Endpoint model_manager.py get_model_preview path traversal |
| CVE-2026-6589 | 4.3 MEDIUM | ComfyUI server.py create_origin_only_middleware cross-site request forgery |
| CVE-2026-6593 | 3.5 LOW | ComfyUI View Endpoint server.py cross site scripting |
| CVE-2026-6592 | 3.5 LOW | ComfyUI userdata Endpoint user_manager.py getuserdata cross site scripting |
| CVE-2026-29642 | XiangShan 安全漏洞 | |
| CVE-2026-29643 | XiangShan 安全漏洞 | |
| CVE-2026-29648 | NEMU 安全漏洞 | |
| CVE-2026-29647 | NEMU 安全漏洞 | |
| CVE-2026-30266 | DeepCool DeepCreative 安全漏洞 | |
| CVE-2026-29649 | NEMU 安全漏洞 | |
| CVE-2026-29645 | NEMU 安全漏洞 | |
| CVE-2026-39109 | PHPGurukul Apartment Visitors Management System 安全漏洞 | |
| CVE-2026-39111 | PHPGurukul Apartment Visitors Management System 安全漏洞 | |
| CVE-2026-39110 | PHPGurukul Apartment Visitors Management System 安全漏洞 | |
| CVE-2026-39112 | PHPGurukul Apartment Visitors Management System 安全漏洞 | |
| CVE-2026-26399 | Arduino 安全漏洞 | |
| CVE-2025-66954 | Buffalo LinkStation 安全漏洞 | |
| CVE-2026-30269 | doorman 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-29646
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