Unauthenticated RCE in Android media framework (MatroskaExtractor) affecting many Android devices; widespread impact on endpoints and mobile fleets.
CVE-2026-28609
Android Matroska extractor OOB write enabling remote code execution.
Is CVE-2026-28609 being exploited?
Not confirmed. CVE-2026-28609 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.27% probability of exploitation in the next 30 days.
How severe is CVE-2026-28609?
CVE-2026-28609 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-28609?
Yes. A fix has been recorded for CVE-2026-28609. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-28609 affect?
CVE-2026-28609 affects Android devices (media framework - MatroskaExtractor), Android media libraries/components handling Matroska/WebM, Apps that parse Matroska/WebM files on Android. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-28609?
Install Android security updates immediately; block/untrusted Matroska files.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated remote code execution on Android via crafted Matroska/WebM file; attacker can run arbitrary code in the media process without user interaction.
Immediate action required
- affected16-qpr2
- affected16
- affected15
- affected14
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.