CVE-2019-5062: w1.fi hostapd Expected Behavior Violation
CVSS: 7.4v3.0HighModified
AliasesUBUNTU-CVE-2019-5062DEBIAN-CVE-2019-5062
Published 12-12-2019Last modified 04-08-2024
Vulnerability summary
CVE-2019-5062 is a high (CVSS 7.4) Expected Behavior Violation vulnerability in w1.fi hostapd. EPSS estimates a 0.57% chance of exploitation in the next 30 days, higher than 46% of scored vulnerabilities.
CVSS score
7.4/10
010
High · v3.0 (CVE.org)EPSS score
0.57%
0%100%
Low · +0.02 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 12-12-2019PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
An exploitable denial-of-service vulnerability exists in the 802.11w security state handling for hostapd 2.6 connected clients with valid 802.11w sessions. By simulating an incomplete new association, an attacker can trigger a deauthentication against stations using 802.11w, resulting in a denial of service.
CVSS metrics
7 scores · 4 sources · 3 versionsMedium 6.5Preferred score · OSV · Ubuntu (Ecosystem advisory) · calculated from vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST6.5MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
High 7.4Preferred score · CVE.org (CNA)
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.4HighCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
- NVDNIST7.4HighCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Low 3.3Preferred score · NVD (NIST)
AV:A/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
0.57%
Chance of exploitation in the next 30 days
Percentile
46%
Versus all other CVEs
30-day change
+0.02 pp
From 0.55% on 20-09-2026
20-09-202620-10-2026
EPSS score0.57%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- wpaAll versions (No fix recorded)
Ubuntu1 product
- wpaAll versions (No fix recorded)
W1.fi1 product
- hostapd2.6
3 vendors · 3 products
References
4 links- talosintelligence.com/vulnerability_reports/TALOS-2019-0850X Refsource MISCREPORTThird Party Advisory
