The EAP-pwd implementation in hostapd (EAP server) before 2.8 and wpa_supplicant (EAP…
Priority LOW 32CWE-476Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-476.
Summary
The EAP-pwd implementation in hostapd (EAP server) before 2.8 and wpa_supplicant (EAP peer) before 2.8 does not validate fragmentation reassembly state properly for a case where an unexpected fragment could be received. This could result in process termination due to a NULL pointer dereference (denial of service). This affects eap_server/eap_server_pwd.c and eap_peer/eap_pwd.c.
Why it matters now
EPSS 0.03252 88th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:w1.fi:hostapd:*:*:*:*:*:*:*:* | before 2.8 | Vulnerable | Wi-Fi Alliance |
| cpe:2.3:a:w1.fi:wpa_supplicant:*:*:*:*:*:*:*:* | before 2.8 | Vulnerable | Wi-Fi Alliance |
- cpe:2.3:a:w1.fi:hostapd:*:*:*:*:*:*:*:* Versions before 2.8 Vulnerable ·Wi-Fi Alliance
- cpe:2.3:a:w1.fi:wpa_supplicant:*:*:*:*:*:*:*:* Versions before 2.8 Vulnerable ·Wi-Fi Alliance
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 4 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2019-11555
- 2026-10-03 Alias added: GHSA-3r3j-9m7c-h35g
References
Patch 3
Advisory 9
More Wi-Fi Alliance Hostapd vulnerabilities
- TI-2020-10094 The Open Connectivity Foundation UPnP specification before 2020-04-17 does not forbid the… CVSS 3.1HIGH 7.5
- TI-2022-07426 The implementations of SAE in hostapd before 2.10 and wpa_supplicant before 2.10 are… CVSS 3.1CRITICAL 9.8
- TI-2022-07427 The implementations of EAP-pwd in hostapd before 2.10 and wpa_supplicant before 2.10 are… CVSS 3.1CRITICAL 9.8
- TI-2019-06933 Improper authentication in Wi-Fi Alliance hostapd with EAP-pwd support CVSS 3.0HIGH 8.1
- TI-2017-09721 Wi-Fi Protected Access (WPA and WPA2) that supports IEEE 802.11r allows reinstallation of… CVSS 3.0HIGH 8.1
- TI-2019-06935 Origin validation error in Wi-Fi Alliance hostapd with EAP-pwd support CVSS 3.1HIGH 8.1
Sources
- CVE-2019-11555 · CVE Program
- CVE-2019-11555 · NVD
- FIRST EPSS
- GHSA-3r3j-9m7c-h35g · GitHub Advisory Database · CC BY 4.0
- CVE-2019-11555 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences