The implementations of EAP-PWD in wpa_supplicant EAP Peer do not validate the scalar and element values in EAP-pwd-Commit
Published Apr 17, 2019
8.1
HIGHCVSS 3.1
EPSS 2.21%
Description
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.
Affected products
-
- Version 2.7StatusaffectedConstraints<=2.7
- Version
-
- Version 2.4StatusaffectedConstraints<=2.4
- Version
-
- Version 2.7StatusaffectedConstraints<=2.7
- Version
-
- Version 2.4StatusaffectedConstraints<=2.4
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Wi-Fi Alliance | hostapd with EAP-pwd support | n/a |
| ||||||
| Wi-Fi Alliance | hostapd with SAE support | n/a |
| ||||||
| Wi-Fi Alliance | wpa supplicant with EAP-pwd support | n/a |
| ||||||
| Wi-Fi Alliance | wpa supplicant with SAE support | n/a |
|
Configuration 1
- ≤ 2.4
- ≥ 2.5 · ≤ 2.7
- ≤ 2.4
- ≥ 2.5 · ≤ 2.7
Configuration 2
- 28
- 29
- 30
Configuration 3
- 15.0
- 15.0
- 15.1
Configuration 4
- 8.0
Configuration 5
- 3.0
- 1.2
Configuration 6
- ≥ 11.0 · ≤ 11.1
- 11.2
- 11.2
- 11.2
- 11.2
- 11.2
- 11.2
- 11.2
- 11.2
- 11.2
- 11.2
- 12.0
- 12.0
- 12.0
- 12.0
No data.
Red Hat Enterprise Linux 5
wpa_supplicant
Not affected
Red Hat Enterprise Linux 6
wpa_supplicant
Not affected
Red Hat Enterprise Linux 7
wpa_supplicant
Not affected
Red Hat Enterprise Linux 8
wpa_supplicant
Not affected
Red Hat Virtualization 4
redhat-virtualization-host
Not affected
Red Hat Virtualization 4
rhvm-appliance
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | wpa_supplicant | Not affected | n/a |
| Red Hat Enterprise Linux 6 | wpa_supplicant | Not affected | n/a |
| Red Hat Enterprise Linux 7 | wpa_supplicant | Not affected | n/a |
| Red Hat Enterprise Linux 8 | wpa_supplicant | Not affected | n/a |
| Red Hat Virtualization 4 | redhat-virtualization-host | Not affected | n/a |
| Red Hat Virtualization 4 | rhvm-appliance | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of wpa_supplicant as shipped with Red Hat Enterprise Linux 5 and 6 as they did not include support for EAP-pwd. This issue did not affect the versions of wpa_supplicant as shipped with Red Hat Enterprise Linux 7 as they are not compiled with EAP-pwd enabled. In particular, the CONFIG_EAP_PWD=y option is not set at compile time.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
AV:N/AC:M/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (18 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.21% (0.02215) | 82.00th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.39% (0.02386) | 81.70th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.41% (0.01405) | 78.69th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.16% (0.03160) | 78.08th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.41% (0.01405) | 79.14th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.50% (0.00501) | 77.15th | v3 (v2023.03.01) |
| Apr 10, 2024 | 0.73% (0.00735) | 80.51th | v3 (v2023.03.01) |
| Mar 3, 2024 | 0.58% (0.00576) | 77.45th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.58% (0.00576) | 75.45th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.50% (0.00504) | 73.48th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.51% (0.00510) | 72.97th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.54% (0.01537) | 74.52th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.54% (0.01537) | 72.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 17.17% (0.17166) | 93.10th | v2 (v2022.01.01) |
| Feb 3, 2022 | 8.66% (0.08659) | 85.81th | v1 |
| Jan 6, 2022 | 8.66% (0.08659) | 85.64th | v1 |
| Jan 5, 2022 | 2.07% (0.02069) | 78.02th | v5 (v2026.06.15) |
| Apr 14, 2021 | 2.07% (0.02069) | 0.00th | v1 |
References (15)
- http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2019-9499 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1699170 Issue Tracking
- https://lists.debian.org/debian-lts-announce/2019/07/msg00030.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVMJOFEYBGXZLFF5IOLW67SSOPKFEJP3/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDOZGR3T7FVO5JSZWK2QPR7AOFIEJTIZ/ vendor-advisoryx_refsource_FEDORA
- https://nvd.nist.gov/vuln/detail/CVE-2019-9499
- https://seclists.org/bugtraq/2019/May/40 mailing-listx_refsource_BUGTRAQMailing ListThird Party Advisory
- https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.asc vendor-advisoryx_refsource_FREEBSDThird Party Advisory
- https://w1.fi/security/2019-4/ x_refsource_CONFIRMPatchVendor Advisory
- https://w1.fi/security/2019-4/eap-pwd-missing-commit-validation.txt
- https://www.cve.org/CVERecord?id=CVE-2019-9499
- https://www.kb.cert.org/vuls/id/871675/
- https://www.synology.com/security/advisory/Synology_SA_19_16 x_refsource_CONFIRMThird Party Advisory
Change history (0)
No recorded changes yet.