CVE-2019-9497: 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
Vulnerability summary
CVE-2019-9497 is a high (CVSS 8.1) vulnerability in fedoraproject fedora. EPSS estimates a 4.99% chance of exploitation in the next 30 days, higher than 92.2% of scored vulnerabilities.
Severe, CVSS 8.1 (NVD); no exploitation reported by the 5 checked sources; EPSS 5% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 11 · Related 9Timeline
- 17-04-2019PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · AlpineEcosystem advisory · calculated8.1HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated8.1HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.1HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
4.99%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
No change 0.00 pp
From 4.99% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-301Reflection Attack in an Authentication ProtocolSimple authentication protocols are subject to reflection attacks if a malicious user can use the target machine to impersonate a trusted user.
- CWE-287Improper AuthenticationWhen an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
Affected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Wi-fi alliance4 products
W1.fi2 products
- hostapd≤ 2.4 | ≥ 2.5, ≤ 2.7
- wpa_supplicant≤ 2.4 | ≥ 2.5, ≤ 2.7
Alpine1 product
- wpa_supplicant≥ 2.5, < 2.7-r2
Debian1 product
- wpa< 2:2.7+git20190128+0c1e29f-4
Fedoraproject1 product
- fedoraEOL28 | 29 | 30
Ubuntu1 product
- wpa< 2.1-0ubuntu1.7 | < 2.4-0ubuntu6.4 | < 2:2.6-15ubuntu2.2
6 vendors · 10 products
References
15 links- www.synology.com/security/advisory/Synology_SA_19_16X Refsource CONFIRM
