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PatchSiren cyber security CVE debrief

CVE-2011-1823 Android CVE debrief

CVE-2011-1823 is an Android OS privilege-escalation vulnerability that CISA added to the Known Exploited Vulnerabilities catalog. The KEV entry indicates it is known to have been exploited and directs defenders to apply vendor updates. CISA listed the entry on 2022-09-08 and set a remediation due date of 2022-09-29. The supplied source corpus does not identify affected versions, exploit details, or confirmed ransomware campaign use.

Vendor
Android
Product
Android OS
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2022-09-08
Original CVE updated
2022-09-08
Advisory published
2022-09-08
Advisory updated
2022-09-08

Who should care

Teams responsible for Android device fleets, mobile security teams, MDM/UEM administrators, and organizations that depend on Android OS deployments should prioritize this issue.

Technical summary

The available official metadata describes the issue only at a high level: an Android OS privilege-escalation vulnerability. CISA’s KEV record confirms known exploitation and references vendor guidance for remediation, but the supplied corpus does not include a CVSS score, affected-build range, or a technical exploit description. Defenders should use the official CVE, NVD, and CISA KEV references to validate scope and ensure patched Android builds are deployed.

Defensive priority

High — CISA KEV inclusion means this vulnerability should be treated as a priority remediation item, with patching and verification completed against vendor guidance as soon as possible.

Recommended defensive actions

  • Apply Android vendor updates per the vendor instructions referenced by CISA.
  • Inventory Android devices and identify any systems that may still be on unpatched builds.
  • Use MDM/UEM compliance checks to confirm remediation across the fleet.
  • Retire or isolate devices that can no longer receive security updates.
  • Review the official CVE and NVD records for any additional references or scope details.

Evidence notes

The source corpus is limited to official records: the CISA KEV JSON entry marks CVE-2011-1823 as a known exploited Android OS privilege-escalation vulnerability, lists Android as the vendor project, and states the required action is to apply updates per vendor instructions. The KEV metadata also includes references to an Android source change and the NVD entry. No CVSS score or affected-version details were supplied in the corpus, and known ransomware campaign use is listed as Unknown.

Sources and references

Verified primary and authoritative sources

  • CVE-2011-1823 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2011-1823

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

  • CVE-2011-1823 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2011-1823

    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.