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Fencer Vulns
high 8.1

CVE-2019-9498 json

The implementations of EAP-PWD in hostapd EAP Server do not validate the scalar and element values in EAP-pwd-Commit

published 2019-04-17 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-18872

cvss
8.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.2%
EPSS 2.2% chance of exploitation in 30 days, percentile 82%
public exploits
0
none known

Summary

The implementations of EAP-PWD in hostapd EAP Server, when built against a crypto library missing explicit validation on imported elements, do not validate the scalar and element values in EAP-pwd-Commit. An attacker may be able to use invalid scalar/element values to complete authentication, gaining session key and network access without needing or learning the password. 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.

Patch / fix

  • wpa Debian 14, Debian 13, Debian 12 2:2.7+git20190128+0c1e29f-4

debian advisories DEBIAN-CVE-2019-9498

  • wpa Ubuntu 14.04 LTS 2.1-0ubuntu1.7
  • wpa Ubuntu 16.04 LTS 2.4-0ubuntu6.4
  • wpa Ubuntu 18.04 LTS 2:2.6-15ubuntu2.2

ubuntu advisories UBUNTU-CVE-2019-9498

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • wpa_supplicant SLES for SAP 12 SP4, SLES for SAP 12 SP3, SLES 12 SP4-LTSS +8 more 2.9-15.22.1
  • wpa_supplicant SLES for SAP 12 SP5, SLES 12 SP5 2.9-23.3.1
  • wpa_supplicant SLES for SAP 15, SLES 15-LTSS, SLE Module for Basesystem 15 SP2 +3 more 2.9-4.20.1

suse advisories SUSE-SU-2022:1853-1SUSE-SU-2020:3424-1SUSE-SU-2020:3380-1

  • wpa_supplicant openSUSE Leap 15.2 2.9-lp152.8.3.1
  • wpa_supplicant openSUSE Leap 15.1 2.9-lp151.5.10.1
  • hostapd Package Hub 15 SP1, Package Hub 15, openSUSE Leap 15.1 2.9-bp151.5.3.1

opensuse advisories openSUSE-SU-2020:2059-1openSUSE-SU-2020:2053-1openSUSE-SU-2020:0222-1

  • wpa_supplicant Alpine 3.24, Alpine 3.23, Alpine 3.22 +13 more 2.7-r2

alpine advisories ALPINE-CVE-2019-9498

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-9498 updated cvss 6.8

wpa_supplicant: EAP-pwd server missing commit validation for scalar/element

  • Red Hat Enterprise Linux 5 wpa_supplicant Red Hat Enterprise Linux 6 wpa_supplicant Red Hat Enterprise Linux 7 wpa_supplicant Red Hat Enterprise Linux 8 wpa_supplicant Red Hat Virtualization 4 rhvm-appliance, redhat-virtualization-host-image-update
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.21% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

  • Wi-Fi Alliance hostapd with EAP-pwd support
  • Wi-Fi Alliance wpa_supplicant with EAP-pwd support
  • Wi-Fi Alliance hostapd with SAE support
  • Wi-Fi Alliance wpa_supplicant with SAE support

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.