CVE-2019-9497

8.1 HIGH 5% exploit odds Fix listed

What it is

The implementations of EAP-PWD in hostapd EAP Server and wpa_supplicant EAP Peer do not validate the scalar and element values in EAP-pwd-Commit. This vulnerability may allow an attacker to complete EAP-PWD authentication without knowing the password. However, unless the crypto library does not implement additional checks for the EC point, the attacker will not be able to derive the session key or complete the key exchange. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.4 are affected. Both hostapd with EAP-pwd support and wpa_supplicant with EAP-pwd support prior to and including version 2.7 are affected.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
Exploit odds: 5.0% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2019-04-17 14:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 02:43 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 5.0% in the next 30 days (EPSS).
Severity: 8.1 HIGH (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2019-04-17 14:29 UTC
Last modified: 2026-06-17 02:43 UTC
Exploit probability: 5.0% · EPSS, next 30 days
Weakness: CWE-301
Record status: Modified

Affected

w1.fi Hostapd ≤ 2.4
w1.fi Hostapd ≤ 2.7
w1.fi Wpa Supplicant ≤ 2.4
w1.fi Wpa Supplicant ≤ 2.7
Fedoraproject Fedora 28
Fedoraproject Fedora 29
Fedoraproject Fedora 30

Attack profile CVSS 3.0 · 8.1

Attack vector: Network
Complexity: High
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Raw vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Is it in your code?

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Fix and advisories

References

NVD record · CVE.org record