CVE-2023-21306 | Vulnetix

CVE-2023-21306 PUBLISHED

Reported by google_android · Published October 30, 2023

In ContentService, there is a possible way to read installed sync content providers due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

Package	Ecosystem	Fixed in
android	google	14.0

Affected products

Vendor	Product	Versions
Google	Android	14
Google	Android	14

Timeline

Oct 30, 2023 CVE Published
Oct 31, 2023 EPSS Score (30 in total, the first dated here)
Aug 24, 2025 PoC Published (2 in total, the first dated here)
Feb 23, 2026 CVE Updated
May 20, 2026 Coalition ESS Score
Jun 2, 2026 Security Advisory

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln CVE-2023-21306
vulnetix vdb fixes CVE-2023-21306

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curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/CVE-2023-21306/fixes/registry"

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References

Look up in the Resolve Platform →