BlackTreeCVE Intelligence
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Full vulnerability report · 2019
CVE-2019-16275High confidence

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

Unknown · Unknown

6.5MediumCVSS 3.1
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Medium, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 1.21% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Unknown Unknown and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: As exposure requiresRemediation target: Within 365 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Distribution package intelligence

Release-specific package status

Alpine, Debian findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

10 package states
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Alpine v3.23v3.23 · mainhostapdVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.2.9-r1Alpine Security Database ↗Source updated 3 Oct 2026
Alpine v3.23v3.23 · mainwpa_supplicantVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.2.9-r5Alpine Security Database ↗Source updated 3 Oct 2026
Alpine v3.22v3.22 · mainhostapdVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.2.9-r1Alpine Security Database ↗Source updated 3 Oct 2026
Alpine v3.22v3.22 · mainwpa_supplicantVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.2.9-r5Alpine Security Database ↗Source updated 3 Oct 2026
Alpine v3.21v3.21 · mainhostapdVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.2.9-r1Alpine Security Database ↗Source updated 3 Oct 2026
Alpine v3.21v3.21 · mainwpa_supplicantVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.2.9-r5Alpine Security Database ↗Source updated 3 Oct 2026
Debian trixietrixie · sourcewpaVendor fix publishedDebian records a fixed source-package version for this release.2:2.9-2Debian Security Tracker ↗Source updated 5 Oct 2026
Debian bookwormbookworm · sourcewpaVendor fix publishedDebian records a fixed source-package version for this release.2:2.9-2Debian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · sourcewpaVendor fix publishedDebian records a fixed source-package version for this release.2:2.9-2Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourcewpaVendor fix publishedDebian records a fixed source-package version for this release.2:2.9-2Debian Security Tracker ↗Source updated 5 Oct 2026
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2019-7074

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
01

What, why and how

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.

What

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

The product does not properly verify that the source of data or communication is valid.

How

An attacker operating through the affected interface may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.

What

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

The product does not properly verify that the source of data or communication is valid.

How

An attacker operating through the affected interface may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
the affected interface → Origin Validation Error → disrupt the affected service
Attack surface
Unspecified
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-346 ↗

CWE-346: Origin Validation Error. The product does not properly verify that the source of data or communication is valid.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVAdjacentAttack vector: The attacker must be on an adjacent or logically close network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
UnauthenticatedDenial of serviceCWE-346
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

CERT-FR · French · CERTFR-2020-AVI-331Multiples vulnérabilités dans Google Android

d?id=CVE-2019-13136 Référence CVE CVE-2019-14047 https://www.cve.org/CVERecord?id=CVE-2019-14047 Référence CVE CVE-2019-14062 https://www.cve.org/CVERecord?id=CVE-2019-14062 Référence CVE CVE-2019-14073 https://www.cve.org/CVERecord?id=CVE-2019-14073 Référence CVE CVE-2019-14076 https://www.cve.org/CVERecord?id=CVE-2019-14076 Référence CVE CVE-2019-14080 https://www.cve.org/CVERecord?id=CVE-2019-14080 Référence CVE CVE-2019-14091 https://www.cve.org/CVERecord?id=CVE-2019-14091 Référence CVE CVE-2019-14092 https://www.cve.org/CVERecord?id=CVE-2019-14092 Référence CVE CVE-2019-14094 https://www.cve.org/CVERecord?id=CVE-2019-14094 Référence CVE CVE-2019-16275 https://www.cve.org/CVERecord?id=CVE-2019-16275 Référence CVE CVE-2019-17666 https://www.cve.org/CVERecord?id=CVE-2019-17666 Référence CVE CVE-2019-18683 https://www.cve.org/CVERecord?id=CVE-2019-18683 Référence CVE CVE-2019-18786 https://www.cve.org/CVERecord?id=CVE-2019-18786 Référence CVE CVE-2019-19071 https://www.cve.org/CVERecord?id=CVE-2019-19071 Référence CVE CVE-2019-19526 https://www.cve.org/CVERecord?id=CVE-2019-19526 Référence CVE CVE-2019-19529 https://www.cve.org/CVERecord?id=CVE-2019-19529 Référence CVE CVE-2019-19543 https://www.cve.org/CVERecord?id=CVE-2019-19543 Référence CVE CVE-2019-19767 https://www.cve.org/CVERecord?id=

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2019-009323hostapd および wpa_supplicant における同一生成元ポリシー違反に関する脆弱性

hostapd および wpa_supplicant には、同一生成元ポリシー違反に関する脆弱性が存在します。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
n/a
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
A mitigation or workaround reference is available from the source linked below; validate it against the affected product and version.
04

Evidence and provenance

Published 12 Sept 2019 · Last source change 5 Aug 2024, 01:10 UTC · CWE-346 · Origin Validation Error

CVE recordCVE.org · 5.1
CVSS sourceNIST NVD
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-09-01
European sourceENISA EUVD · EUVD-2019-7074
Product sourceUnavailable
Remediation sourceCVE/CNA references
CWE sourceNIST NVD
NVD statusNVD modified after enrichment

Missing structured fields: affected product. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates ↗
  1. ENISA EUVD mappingEUVD-2019-7074 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2019-7074"}
    ENISA EUVD ↗
  2. Vendor guidanceAuthoritative vendor guidance changed: added mitigation: openwall.com/6; added mitigation: openwall.com/7; removed vendor advisory: debian.org/dsa-4538; removed vendor advisory: lists.fedoraproject.org/36G4XAZ644DMHBLKOL4FDSPZVIGNQY6U; 3 further additions; 6 further removals.
    Before
    vendor advisory: debian.org/dsa-4538 · vendor advisory: lists.fedoraproject.org/36G4XAZ644DMHBLKOL4FDSPZVIGNQY6U · vendor advisory: lists.fedoraproject.org/B7NCLOPTZNRRNYODH22BFIDH6YIQWLJD · 5 more references
    After
    mitigation: openwall.com/6 · mitigation: openwall.com/7 · mitigation: w1.fi/ap-mode-pmf-disconnection-protection-bypass.txt · 2 more references
    w1.fi ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    n/a · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    n/a · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    CNA ↗
  4. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    w1.fi ↗
  5. SeveritySeverity changed from Unknown to Medium.
    Before
    Unknown
    After
    Medium
    NIST NVD ↗
  6. CVSS scoreCVSS score changed from not recorded to 6.5 (CVSS 3.1 · NIST NVD · CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
    Before
    not recorded
    After
    6.5 (CVSS 3.1 · NIST NVD · CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
    NIST NVD ↗
  7. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2019-7074↗CVE authority or vendor reference↗Patch or update reference↗Mitigation reference↗Mitigation reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2019-16275 · cve.blacktree.nl