CVE-2019-9499 | The implementations of EAP-PWD in wpa_supplicant EAP Peer do not validate the scalar and element values in EAP-pwd-Commit

The implementations of EAP-PWD in wpa_supplicant EAP Peer, 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 complete authentication, session key and control of the data connection with a client. 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.

Published: 2019-04-17 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-9499 is rated Moderate Risk (62.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.39%). EPSS rose +1.59% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2019-9499

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.79% 2.39% +1.59%
2 2026-05-29 0.88% 0.79% -0.08%
3 2026-05-22 — 0.88% —

Full EPSS history (45 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-9499

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.1 3.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 5.9 [email protected]
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2019-9499

OS Trackers for CVE-2019-9499

vendor priority summary link
alpine high CVE-2019-9499: 2 source package rows (hostapd, wpa_supplicant); 30 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 15, open 15. https://security.alpinelinux.org/vuln/CVE-2019-9499
debian not yet assigned CVE-2019-9499 not yet assigned priority: Debian including 1 source packages (wpa), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2019-9499
redhat high — https://access.redhat.com/security/cve/CVE-2019-9499
suse high CVE-2019-9499 severity important: SUSE including 26 source package names (hostapd-2.9-6.2, hostapd-2.9-bp150.15.1, …), 88 product×package rows across 83 product lines (Container rancher/elemental-teal-rt/5.3, Container rancher/elemental-teal-rt/5.4, … (83 product lines)): Fixed 72, Known Not Affected 16. https://www.suse.com/security/cve/CVE-2019-9499/
ubuntu medium CVE-2019-9499 medium priority: Ubuntu including 2 source packages (wpa, wpasupplicant), 12 status rows across 6 suites (bionic, cosmic, disco, trusty, upstream, xenial): released 6, DNE 5, needs-triage 1. https://ubuntu.com/security/CVE-2019-9499

Affected software / configurations for CVE-2019-9499

Vendor Product Version Raw CPE
w1.fi hostapd <= 2.4 cpe:2.3:a:w1.fi:hostapd:*:*:*:*:*:*:*:*
w1.fi hostapd >= 2.5, <= 2.7 cpe:2.3:a:w1.fi:hostapd:*:*:*:*:*:*:*:*
w1.fi wpa_supplicant <= 2.4 cpe:2.3:a:w1.fi:wpa_supplicant:*:*:*:*:*:*:*:*
w1.fi wpa_supplicant >= 2.5, <= 2.7 cpe:2.3:a:w1.fi:wpa_supplicant:*:*:*:*:*:*:*:*
fedoraproject fedora 28 cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*
fedoraproject fedora 29 cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*
fedoraproject fedora 30 cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
opensuse backports_sle 15.0 cpe:2.3:a:opensuse:backports_sle:15.0:-:*:*:*:*:*:*
opensuse backports_sle 15.0 cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:*
opensuse leap 15.1 cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
synology radius_server 3.0 cpe:2.3:a:synology:radius_server:3.0:*:*:*:*:*:*:*
synology router_manager 1.2 cpe:2.3:a:synology:router_manager:1.2:*:*:*:*:*:*:*
freebsd freebsd >= 11.0, <= 11.1 cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*
freebsd freebsd 11.2 cpe:2.3:o:freebsd:freebsd:11.2:-:*:*:*:*:*:*
freebsd freebsd 11.2 cpe:2.3:o:freebsd:freebsd:11.2:p13:*:*:*:*:*:*
freebsd freebsd 11.2 cpe:2.3:o:freebsd:freebsd:11.2:p2:*:*:*:*:*:*
freebsd freebsd 11.2 cpe:2.3:o:freebsd:freebsd:11.2:p3:*:*:*:*:*:*
freebsd freebsd 11.2 cpe:2.3:o:freebsd:freebsd:11.2:p4:*:*:*:*:*:*
freebsd freebsd 11.2 cpe:2.3:o:freebsd:freebsd:11.2:p5:*:*:*:*:*:*
freebsd freebsd 11.2 cpe:2.3:o:freebsd:freebsd:11.2:p6:*:*:*:*:*:*
freebsd freebsd 11.2 cpe:2.3:o:freebsd:freebsd:11.2:p7:*:*:*:*:*:*
freebsd freebsd 11.2 cpe:2.3:o:freebsd:freebsd:11.2:p8:*:*:*:*:*:*
freebsd freebsd 11.2 cpe:2.3:o:freebsd:freebsd:11.2:p9:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:-:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p1:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p2:*:*:*:*:*:*
freebsd freebsd 12.0 cpe:2.3:o:freebsd:freebsd:12.0:p3:*:*:*:*:*:*

References for CVE-2019-9499

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/07/msg00030.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVMJOFEYBGXZLFF5IOLW67SSOPKFEJP3/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDOZGR3T7FVO5JSZWK2QPR7AOFIEJTIZ/
https://seclists.org/bugtraq/2019/May/40 Mailing List Third Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.asc Third Party Advisory
https://w1.fi/security/2019-4/ Patch Vendor Advisory
https://www.synology.com/security/advisory/Synology_SA_19_16 Third Party Advisory
cvelogic Threat Intelligence