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PatchSiren cyber security CVE debrief

CVE-2019-2215 Android CVE debrief

CVE-2019-2215 is an Android Kernel use-after-free vulnerability that CISA has listed in its Known Exploited Vulnerabilities (KEV) catalog. For defenders, the key takeaway is that CISA considers this issue to have been exploited in the wild, so patching and validation should be prioritized using vendor instructions.

Vendor
Android
Product
Android Kernel
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2021-11-03
Original CVE updated
2021-11-03
Advisory published
2021-11-03
Advisory updated
2021-11-03

Who should care

Android platform owners, OEMs, mobile device fleet administrators, enterprise security teams, and any organization that manages Android-based devices or embeds Android Kernel components.

Technical summary

The source corpus identifies the issue as an Android Kernel use-after-free vulnerability. CISA’s KEV entry marks it as a known exploited vulnerability and directs defenders to apply updates per vendor instructions. No CVSS score or deeper technical impact details were provided in the supplied sources.

Defensive priority

High. CISA KEV inclusion indicates known exploitation, so remediation should be treated as time-sensitive even though the corpus does not provide a CVSS score.

Recommended defensive actions

  • Apply vendor-recommended updates as soon as they are available.
  • Confirm which Android devices, builds, or kernel versions are affected in your environment.
  • Track remediation to completion and verify devices are actually updated.
  • Prioritize internet-facing, high-value, and difficult-to-replace devices first.
  • Monitor the official CVE and NVD records for any updated guidance or references.

Evidence notes

All statements are limited to the supplied CISA KEV metadata and the linked official records. The corpus identifies the vulnerability as an Android Kernel use-after-free issue, marks it as KEV-listed, and provides the vendor action to apply updates per vendor instructions. No CVSS score, exploit details, or broader technical analysis were included in the supplied sources.

Sources and references

Verified primary and authoritative sources

  • CVE-2019-2215 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2019-2215

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2019-2215 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2019-2215

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

    cisa_kev

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.