hostapd before 2.10 and wpa_supplicant before 2.10 allow an incorrect indication of…
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-346.
Summary
hostapd before 2.10 and wpa_supplicant before 2.10 allow an incorrect indication of disconnection in certain situations because source address validation is mishandled. This is a denial of service that should have been prevented by PMF (aka management frame protection). The attacker must send a crafted 802.11 frame from a location that is within the 802.11 communications range.
Why it matters now
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 · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:w1.fi:hostapd:*:*:*:*:*:*:*:* | up to 2.9 | Vulnerable | Wi-Fi Alliance |
| cpe:2.3:a:w1.fi:wpa_supplicant:*:*:*:*:*:*:*:* | up to 2.9 | Vulnerable | Wi-Fi Alliance |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
| cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* | 12.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* | 14.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* | 16.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | 18.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* | 19.04 | Vulnerable | Canonical |
- cpe:2.3:a:w1.fi:hostapd:*:*:*:*:*:*:*:* Versions up to 2.9 Vulnerable ·Wi-Fi Alliance
- cpe:2.3:a:w1.fi:wpa_supplicant:*:*:*:*:*:*:*:* Versions up to 2.9 Vulnerable ·Wi-Fi Alliance
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* Versions 12.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* Versions 14.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* Versions 19.04 Vulnerable ·Canonical
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-2019-16275
- 2026-10-03 Alias added: GHSA-96gq-6rhf-g9x2
References
Advisory 13
- https://www.openwall.com/lists/oss-security/2019/09/11/7
- https://w1.fi/security/2019-7/ap-mode-pmf-disconnection-protection-bypass.txt
- [oss-security] 20190912 Re: hostapd/wpa_supplicant: AP mode PMF disconnection protection bypass
- [debian-lts-announce] 20190916 [SECURITY] [DLA 1922-1] wpa security update
- USN-4136-1
- USN-4136-2
- DSA-4538
- 20190929 [SECURITY] [DSA 4538-1] wpa security update
- FEDORA-2019-0e0b28001d
- FEDORA-2019-740834c559
- FEDORA-2019-2265b5ae86
- FEDORA-2019-65509aac53
- FEDORA-2019-2bdcccee3c
Sources
- CVE-2019-16275 · CVE Program
- CVE-2019-16275 · NVD
- FIRST EPSS
- GHSA-96gq-6rhf-g9x2 · GitHub Advisory Database · CC BY 4.0
- CVE-2019-16275 · Red Hat security data · CC BY 4.0
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