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Vulnerability Assessment

Weakness
CWE
CWE-323
OWASP Top 10:2025
A04:2025 - Cryptographic Failures
ASVS 5.0
V11 - Cryptography Nonce/key pair uniqueness
Impact

CVSS score of 8.1 (HIGH). Attack characteristics: adjacent network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 0.69%.
Exploit ScenarioDerived

Successful exploitation could compromise the high-severity affected system.
This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.7% exploitation probability (EPSS)

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AnalysisAI

Wi-Fi Protected Access (WPA and WPA2) that supports IEEE 802.11r allows reinstallation of the Pairwise Transient Key (PTK) Temporal Key (TK) during the fast BSS transmission (FT) handshake, allowing. Rated high severity (CVSS 8.1), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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Technical ContextAI · show details

This vulnerability is classified under CWE-323. Wi-Fi Protected Access (WPA and WPA2) that supports IEEE 802.11r allows reinstallation of the Pairwise Transient Key (PTK) Temporal Key (TK) during the fast BSS transmission (FT) handshake, allowing an attacker within radio range to replay, decrypt, or spoof frames. Affected products include: Canonical Ubuntu Linux, Debian Debian Linux, Freebsd, Opensuse Leap, Redhat Enterprise Linux Desktop.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 8.1 HIGH
AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

DescriptionCVE.org

Wi-Fi Protected Access (WPA and WPA2) that supports IEEE 802.11r allows reinstallation of the Pairwise Transient Key (PTK) Temporal Key (TK) during the fast BSS transmission (FT) handshake, allowing an attacker within radio range to replay, decrypt, or spoof frames.

Threat Intelligence Overview

EPSS Score
0.7%
Top 28% exploitable
Exploit
POC
Public exploit code exists
Data Quality
4 sources
Confidence: Medium
NVD CVE.org EPSS GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC Yes
EPSS 0.7%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Controlled
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

61
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +40
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)CVE.org

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:*:*:*:*:*:*:*
+ 65 more

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References

Advisories & patches
REF http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.html REF http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2017-007.txt REF http://www.debian.org/security/2017/dsa-3999 REF http://www.kb.cert.org/vuls/id/228519 REF http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html REF http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html REF http://www.securityfocus.com/bid/101274 REF http://www.securitytracker.com/id/1039570 REF http://www.securitytracker.com/id/1039571 REF http://www.securitytracker.com/id/1039573 REF http://www.securitytracker.com/id/1039581 REF http://www.ubuntu.com/usn/USN-3455-1 REF https://access.redhat.com/errata/RHSA-2017:2907 REF https://access.redhat.com/security/vulnerabilities/kracks REF https://cert-portal.siemens.com/productcert/pdf/ssa-901333.pdf REF https://cert.vde.com/en-us/advisories/vde-2017-005 REF https://ics-cert.us-cert.gov/advisories/ICSA-17-299-02 REF https://rockwellautomation.custhelp.com/app/answers/detail/a_id/1066697 REF https://security.FreeBSD.org/advisories/FreeBSD-SA-17:07.wpa.asc REF https://security.gentoo.org/glsa/201711-03 REF https://source.android.com/security/bulletin/2017-11-01 REF https://support.lenovo.com/us/en/product_security/LEN-17420 REF https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171016-wpa REF https://w1.fi/security/2017-1/wpa-packet-number-reuse-with-replayed-messages.txt REF https://www.krackattacks.com/

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