CVE-2017-13086

CVE-2017-13086 is a medium-severity vulnerability in W1.fi Hostapd with a CVSS 3.x base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-330.

Key facts

• Severity: Medium (CVSS 3.x base score 6.8)
• CVSS v2: 5.4
• EPSS exploit prediction: 2% (79th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-330
• Affected product: W1.fi Hostapd
• Published: 2017-10-17
• Last modified: 2026-06-17

Description

Wi-Fi Protected Access (WPA and WPA2) allows reinstallation of the Tunneled Direct-Link Setup (TDLS) Peer Key (TPK) during the TDLS handshake, allowing an attacker within radio range to replay, decrypt, or spoof frames.

Frequently asked questions

What is CVE-2017-13086?

Wi-Fi Protected Access (WPA and WPA2) allows reinstallation of the Tunneled Direct-Link Setup (TDLS) Peer Key (TPK) during the TDLS handshake, allowing an attacker within radio range to replay, decrypt, or spoof frames.

How severe is CVE-2017-13086?

CVE-2017-13086 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2017-13086 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-13086?

CVE-2017-13086 primarily affects W1.fi Hostapd. In total, 85 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-13086?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-13086 published?

CVE-2017-13086 was published on 2017-10-17 and last updated on 2026-06-17.

References

• http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2017-007.txt
• http://www.debian.org/security/2017/dsa-3999
• http://www.kb.cert.org/vuls/id/228519
• http://www.securityfocus.com/bid/101274
• http://www.securitytracker.com/id/1039573
• http://www.securitytracker.com/id/1039576
• http://www.securitytracker.com/id/1039577
• http://www.securitytracker.com/id/1039578
• http://www.securitytracker.com/id/1039581
• http://www.ubuntu.com/usn/USN-3455-1
• https://access.redhat.com/errata/RHSA-2017:2907
• https://access.redhat.com/security/vulnerabilities/kracks
• https://cert-portal.siemens.com/productcert/pdf/ssa-901333.pdf
• https://cert.vde.com/en-us/advisories/vde-2017-005
• https://security.FreeBSD.org/advisories/FreeBSD-SA-17:07.wpa.asc
• https://security.gentoo.org/glsa/201711-03
• https://source.android.com/security/bulletin/2017-11-01
• https://support.lenovo.com/us/en/product_security/LEN-17420
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171016-wpa
• https://w1.fi/security/2017-1/wpa-packet-number-reuse-with-replayed-messages.txt
• https://www.krackattacks.com/

Affected products (85)

• cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
• cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
• cpe:2.3:o:canonical:ubuntu_linux:17.04:*:*:*:*:*:*:*
• cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
• cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
• cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*
• cpe:2.3:o:freebsd:freebsd:10:*:*:*:*:*:*:*
• cpe:2.3:o:freebsd:freebsd:10.4:*:*:*:*:*:*:*
• cpe:2.3:o:freebsd:freebsd:11:*:*:*:*:*:*:*
• cpe:2.3:o:freebsd:freebsd:11.1:*:*:*:*:*:*:*
• cpe:2.3:o:opensuse:leap:42.2:*:*:*:*:*:*:*
• cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_desktop:7:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux_server:7:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:0.2.4:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:0.2.5:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:0.2.6:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:0.2.8:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:0.3.7:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:0.3.9:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:0.3.10:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:0.3.11:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:0.4.7:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:0.4.8:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:0.4.9:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:0.4.10:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:0.4.11:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:0.5.7:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:0.5.8:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:0.5.9:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:0.5.10:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:0.5.11:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:0.6.8:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:0.6.9:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:0.6.10:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:0.7.3:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:1.0:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:1.1:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:2.0:*:*:*:*:*:*:*
• cpe:2.3:a:w1.fi:hostapd:2.1:*:*:*:*:*:*:*

More vulnerabilities in W1.fi Hostapd

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• CVE-2019-9499 — High (CVSS 8.1): The implementations of EAP-PWD in wpa_supplicant EAP Peer, when built against a crypto library missing explicit…
• CVE-2019-9498 — High (CVSS 8.1): The implementations of EAP-PWD in hostapd EAP Server, when built against a crypto library missing explicit validation…
• CVE-2019-9497 — High (CVSS 8.1): The implementations of EAP-PWD in hostapd EAP Server and wpa_supplicant EAP Peer do not validate the scalar and element…
• CVE-2017-13082 — High (CVSS 8.1): Wi-Fi Protected Access (WPA and WPA2) that supports IEEE 802.11r allows reinstallation of the Pairwise Transient Key…

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