BlackTreeCVE Intelligence
← Back to the CVE catalogue
Full vulnerability report · 2019
CVE-2019-2215High confidence

Android Kernel Use-After-Free Vulnerability

Android · Android Kernel

7.8HighCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

CISA confirms exploitation in the wild and lists 2022-05-03 as the remediation due date. Verified remediation exists for at least one product or source, but 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:Critical, raised one band.upgradedsince 3 Nov 2021

Evidence used

  • CISA confirms exploitation in the wild.
  • A structured source references public exploit or proof-of-concept material.
  • Exploitation requires an existing local or physical foothold with privileges.
  • EPSS is 72.10% 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.
  • Increase monitoring for the attack path and post-exploitation behaviour described in the report.

Verification

  1. Confirm that the asset runs Android Android Kernel 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: Within 3 daysRemediation target: Within 90 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.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Distribution package intelligence

Release-specific package status

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

5 package states
Package result overrides the generic status

BlackTree has verified remediation for at least one product or source, but the relevant distribution still reports no fixed package for 1 affected package state shown here. Treat those rows as affected with no fix until that distribution publishes a fixed version.

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
Debian trixietrixie · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.4.15.4-1Debian Security Tracker ↗Source updated 23 Oct 2026
Debian bookwormbookworm · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.4.15.4-1Debian Security Tracker ↗Source updated 23 Oct 2026
Debian forkyforky · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.4.15.4-1Debian Security Tracker ↗Source updated 23 Oct 2026
Debian sidsid · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.4.15.4-1Debian Security Tracker ↗Source updated 23 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-raspi-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 23 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-2019-11857

CISA KEV mirrored by ENISA

A use-after-free in binder.c allows an elevation of privilege from an application to the Linux Kernel. No user interaction is required to exploit this vulnerability, however exploitation does require either the installation of a malicious local application or a separate vulnerability in a network facing application.Product: AndroidAndroid ID: A-141720095

EUVD state
Present in the current official mapping
Known exploitation
Recorded by ENISA since 3 Nov 2021. Evidence sources: cisa_kev.
ENISA score
7.8 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

CISA confirms exploitation in the wild and lists 2022-05-03 as the remediation due date. Verified remediation exists for at least one product or source, but 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

Android Kernel contains a use-after-free vulnerability in binder.c that allows for privilege escalation from an application to the Linux Kernel. This vulnerability was observed chained with CVE-2020-0041 and CVE-2020-0069 under exploit chain "AbstractEmu."

What

Android Kernel contains a use-after-free vulnerability in binder.c that allows for privilege escalation from an application to the Linux Kernel. This vulnerability was observed chained with CVE-2020-0041 and CVE-2020-0069 under exploit chain "AbstractEmu."

Why

The program can continue using memory after it has been released, producing unsafe and attacker-influenceable behaviour.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may gain additional privileges.

What

Android Kernel contains a use-after-free vulnerability in binder.c that allows for privilege escalation from an application to the Linux Kernel. This vulnerability was observed chained with CVE-2020-0041 and CVE-2020-0069 under exploit chain "AbstractEmu."

Why

The program can continue using memory after it has been released, producing unsafe and attacker-influenceable behaviour.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may gain additional privileges.

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.
Confirmed in the wild

CISA added this CVE to its Known Exploited Vulnerabilities catalogue on 2021-11-03.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path
local access → Use After Free → gain additional privileges
Attack surface
Local
Privileges required
Low: a basic authenticated account is required
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-416 ↗

CWE-416: Use After Free. The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory belongs to the code that operates on the new pointer.

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

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

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
Privilege escalationCWE-416CISA KEVPublic exploit reference
A

Official authority intelligence

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

ENISA EUVD · EUVD-2019-11857Known-exploited evidence recorded

A use-after-free in binder.c allows an elevation of privilege from an application to the Linux Kernel. No user interaction is required to exploit this vulnerability, however exploitation does require either the installation of a malicious local application or a separate vulnerability in a network facing application.Product: AndroidAndroid ID: A-141720095

Official EUVD record ↗
Canadian Centre for Cyber Security · English · AV19-223Android security advisory

On October 7 2019 Android published a Security Bulletin to address multiple vulnerabilities affecting android devices. Within the Security Bulletin is an elevation of privilege vulnerability (CVE-2019-2215) which affects Android 8.x and later. This vulnerability may be exploitable either through the installation of an untrusted application or through a specially crafted website that leverages additional exploits. In the latter case, the additional exploits would rely on vulnerabilities that may have been patched in past security updates. Once exploited the vulnerability would allow an actor to fully compromise an affected device. The following devices are vulnerable; however, this list is not exhaustive: Android announced that Pixel 1 and Pixel 2 devices will receive at patch as part of their October update. Pixel 3 and 3a are not affected by this vulnerability:

Official advisory ↗
CERT-FR · French · CERTFR-2020-AVI-123Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2019-19533 Référence CVE CVE-2019-19534 https://www.cve.org/CVERecord?id=CVE-2019-19534 Référence CVE CVE-2019-19535 https://www.cve.org/CVERecord?id=CVE-2019-19535 Référence CVE CVE-2019-19536 https://www.cve.org/CVERecord?id=CVE-2019-19536 Référence CVE CVE-2019-19537 https://www.cve.org/CVERecord?id=CVE-2019-19537 Référence CVE CVE-2019-19767 https://www.cve.org/CVERecord?id=CVE-2019-19767 Référence CVE CVE-2019-19947 https://www.cve.org/CVERecord?id=CVE-2019-19947 Référence CVE CVE-2019-19965 https://www.cve.org/CVERecord?id=CVE-2019-19965 Référence CVE CVE-2019-20096 https://www.cve.org/CVERecord?id=CVE-2019-20096 Référence CVE CVE-2019-2215 https://www.cve.org/CVERecord?id=CVE-2019-2215 Gestion détaillée du document le 04 mars 2020 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de la Défense et de la Sécurité Nationale / Agence nationale de la sécurité des systèmes d'information

Official advisory ↗
CERT-FR · French · CERTFR-2019-AVI-555Multiples vulnérabilités dans le noyau Linux d'Ubuntu

De multiples vulnérabilités ont été découvertes dans le noyau Linux d'Ubuntu. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire, un déni de service et un contournement de la politique de sécurité.

Official advisory ↗
CERT-FR · French · CERTFR-2019-AVI-545Multiples vulnérabilités dans Google Android

.cve.org/CVERecord?id=CVE-2019-2205 Référence CVE CVE-2019-2206 https://www.cve.org/CVERecord?id=CVE-2019-2206 Référence CVE CVE-2019-2207 https://www.cve.org/CVERecord?id=CVE-2019-2207 Référence CVE CVE-2019-2208 https://www.cve.org/CVERecord?id=CVE-2019-2208 Référence CVE CVE-2019-2209 https://www.cve.org/CVERecord?id=CVE-2019-2209 Référence CVE CVE-2019-2211 https://www.cve.org/CVERecord?id=CVE-2019-2211 Référence CVE CVE-2019-2212 https://www.cve.org/CVERecord?id=CVE-2019-2212 Référence CVE CVE-2019-2213 https://www.cve.org/CVERecord?id=CVE-2019-2213 Référence CVE CVE-2019-2214 https://www.cve.org/CVERecord?id=CVE-2019-2214 Référence CVE CVE-2019-2215 https://www.cve.org/CVERecord?id=CVE-2019-2215 Référence CVE CVE-2019-2233 https://www.cve.org/CVERecord?id=CVE-2019-2233 Référence CVE CVE-2019-2288 https://www.cve.org/CVERecord?id=CVE-2019-2288 Référence CVE CVE-2019-2310 https://www.cve.org/CVERecord?id=CVE-2019-2310 Référence CVE CVE-2019-2319 https://www.cve.org/CVERecord?id=CVE-2019-2319 Référence CVE CVE-2019-2320 https://www.cve.org/CVERecord?id=CVE-2019-2320 Référence CVE CVE-2019-2321 https://www.cve.org/CVERecord?id=CVE-2019-2321 Référence CVE CVE-2019-2337 https://www.cve.org/CVERecord?id=CVE-2019-2337 Référence CVE CVE-2019-2338 https://www.cve.org/CVERecord?id=CVE-2019-2338 Ge

Official advisory ↗
CERT-FR · French · CERTFR-2019-AVI-484Multiples vulnérabilités dans Google Android

cve.org/CVERecord?id=CVE-2019-10566 Référence CVE CVE-2019-2110 https://www.cve.org/CVERecord?id=CVE-2019-2110 Référence CVE CVE-2019-2114 https://www.cve.org/CVERecord?id=CVE-2019-2114 Référence CVE CVE-2019-2173 https://www.cve.org/CVERecord?id=CVE-2019-2173 Référence CVE CVE-2019-2183 https://www.cve.org/CVERecord?id=CVE-2019-2183 Référence CVE CVE-2019-2184 https://www.cve.org/CVERecord?id=CVE-2019-2184 Référence CVE CVE-2019-2185 https://www.cve.org/CVERecord?id=CVE-2019-2185 Référence CVE CVE-2019-2186 https://www.cve.org/CVERecord?id=CVE-2019-2186 Référence CVE CVE-2019-2187 https://www.cve.org/CVERecord?id=CVE-2019-2187 Référence CVE CVE-2019-2215 https://www.cve.org/CVERecord?id=CVE-2019-2215 Référence CVE CVE-2019-2251 https://www.cve.org/CVERecord?id=CVE-2019-2251 Référence CVE CVE-2019-2268 https://www.cve.org/CVERecord?id=CVE-2019-2268 Référence CVE CVE-2019-2271 https://www.cve.org/CVERecord?id=CVE-2019-2271 Référence CVE CVE-2019-2289 https://www.cve.org/CVERecord?id=CVE-2019-2289 Référence CVE CVE-2019-2295 https://www.cve.org/CVERecord?id=CVE-2019-2295 Référence CVE CVE-2019-2297 https://www.cve.org/CVERecord?id=CVE-2019-2297 Référence CVE CVE-2019-2303 https://www.cve.org/CVERecord?id=CVE-2019-2303 Référence CVE CVE-2019-2315 https://www.cve.org/CVERecord?id=CVE-2019-2315 Ré

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2019-010672Android における解放済みメモリの使用に関する脆弱性

Android には、解放済みメモリの使用に関する脆弱性が存在します。 本脆弱性は、Android ID: A-141720095 として公開されています。

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.
Fix availability varies by product
Affected
Android: Kernel
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
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 11 Oct 2019 · Last source change 21 Oct 2025, 23:45 UTC · CWE-416 · Use After Free

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-2019-11857
Product sourceCISA KEV
Remediation sourceCVE/CNA references
CWE sourceCISA ADP
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. ENISA known-exploited stateENISA EUVD now records this CVE in its known-exploited dataset.
    Before
    not listed in ENISA EUVD known-exploited dataset
    After
    listed in ENISA EUVD known-exploited dataset (EUVD-2019-11857)
    ENISA EUVD ↗
  2. ENISA EUVD mappingEUVD-2019-11857 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2019-11857"}
    ENISA EUVD ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    Kernel · 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.
    After
    Android: Kernel · 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. Vendor guidanceAuthoritative vendor guidance changed: added patch: packetstormsecurity.com/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html; added patch: seclists.org/11; removed vendor advisory: usn.ubuntu.com/4186-1; 2 further additions.
    Before
    vendor advisory: usn.ubuntu.com/4186-1
    After
    patch: packetstormsecurity.com/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html · patch: seclists.org/11 · remediation: seclists.org/11 · 1 more references
    seclists.org ↗
  5. Affected versionsThe structured affected or fixed version information changed.
    Before
    Kernel · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    Kernel · 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 ↗
  6. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    seclists.org ↗
  7. Public exploit evidencePublic exploit evidence changed from No public exploit to Public exploit reference.
    Before
    No public exploit
    After
    Public exploit reference
    packetstormsecurity.com ↗
  8. CVSS scoreCVSS scoring authority changed from CISA ADP to NIST NVD; the displayed base score remained 7.8.
    Before
    7.8 (CVSS 3.1 · CISA ADP · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
    After
    7.8 (CVSS 3.1 · NIST NVD · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
    NIST NVD ↗
  9. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Added to CISA KEV
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2019-11857↗CISA KEV record↗CVE authority or vendor reference↗Patch or update reference↗Patch or update reference↗Public exploit reference↗Public exploit 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-2019-2215 · cve.blacktree.nl