hostapd: denial of service via crafted WPA/WPA2 passphrase parameter
Published May 9, 2016
7.5
HIGHCVSS 3.1
EPSS 2.86%
Description
hostapd 0.6.7 through 2.5 and wpa_supplicant 0.6.7 through 2.5 do not reject \n and \r characters in passphrase parameters, which allows remote attackers to cause a denial of service (daemon outage) via a crafted WPS operation.
Affected products
No data.
Configuration 1
- ≥ 0.6.7 · ≤ 2.5
- ≥ 0.6.7 · ≤ 2.5
Configuration 2
- 14.04
- 16.04
- 17.04
No data.
Red Hat Enterprise Linux 5
wpa_supplicant
Not affected
Red Hat Enterprise Linux 6
wpa_supplicant
Will not fix
Red Hat Enterprise Linux 7
wpa_supplicant
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | wpa_supplicant | Not affected | n/a |
| Red Hat Enterprise Linux 6 | wpa_supplicant | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | wpa_supplicant | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:H
AV:N/AC:L/Au:N/C:N/I:N/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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.86% (0.02858) | 86.25th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.86% (0.02858) | 84.87th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.51% (0.00505) | 63.47th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.65% (0.02654) | 76.22th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.66% (0.00655) | 69.28th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.23% (0.00229) | 61.97th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.19% (0.00194) | 55.34th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.05% (0.01055) | 50.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.05% (0.01055) | 27.52th | v2 (v2022.01.01) |
References (6)
- http://www.openwall.com/lists/oss-security/2016/05/03/12 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.ubuntu.com/usn/USN-3455-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2016-4476 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1332422 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2016-4476
- https://www.cve.org/CVERecord?id=CVE-2016-4476
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2016/05/03/12 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.ubuntu.com/usn/USN-3455-1 | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2016-4476 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1332422 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-4476 | ||
| https://www.cve.org/CVERecord?id=CVE-2016-4476 |
Change history (0)
No recorded changes yet.