Is CVE-2026-21109 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2026-21109 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

No public exploit code is known.

No fixed version is listed yet; check the vendor advisory for mitigations.

Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.

Low

Improper access control in Watch Plugin prior to Android Watch 17 allows local attackers to access sensitive information.

Published Sep 9, 2026 · Updated Sep 10, 2026

The full analysis for this CVE is not ready yet, so this page shows the scores and scope from the public record. How CVEs are selected

Routine patching

CVE-2026-21109 is a low-severity vulnerability (CVSS 2.1).
It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.

CVSS

2.1

EPSS (30-day exploit likelihood)

n/a

Exploit maturity

None known

ATLAS score

n/a

Outside the curated set

FAQ

Improper access control in Watch Plugin prior to Android Watch 17 allows local attackers to access sensitive information.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.

Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.