Remote privilege escalation on Android (widely deployed mobile OS) with no user interaction and high CVSS; affects BYOD and enterprise mobility broadly.
CVE-2026-55280
Remote privilege escalation in Android via out-of-bounds write
Is CVE-2026-55280 being exploited?
Not confirmed. CVE-2026-55280 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.
How severe is CVE-2026-55280?
CVE-2026-55280 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-2026-55280?
Yes. A fix has been recorded for CVE-2026-55280. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-55280 affect?
CVE-2026-55280 affects Android devices (per Android Security Bulletin). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-55280?
Apply Android security updates immediately; limit network access for unpatched devices.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote privilege escalation to higher (potentially root) via out-of-bounds write from uninitialized data; no user interaction required.
Patch when possible
- affected17
- affected16-qpr2
- affected16
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.