Is CVE-2026-21021 being actively exploited?

CVE-2026-21021 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2026-21021?

CVE-2026-21021 has a CVSS 3.1 base score of 6.8 (MEDIUM).

CVE-2026-21021

MEDIUM · CVSS 6.8EPSS 0.2%EU EUVD

Improper input validation in Routines prior to SMR May-2026 Release 1 allows physical attackers to launch privileged activity.

Key facts

CVSS score: 6.8 (v3.1)
Severity: MEDIUM
CVSS vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS score: 0.2% (11th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2026-29907)
Published: May 13, 2026
NVD last modified: June 17, 2026
Status: Analyzed

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2026-29907 in the EU Vulnerability Database. Last updated in EUVD on May 13, 2026.

View on the EU Vulnerability Database

Affected products

samsung / android
samsung / android
samsung / android
samsung / android
samsung / android
samsung / android
samsung / android
samsung / android
samsung / android
samsung / android

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

Samsung Electronics Co., Ltd. Samsung Galaxy Devices on Android 16 – Fall - Samsung Electronics Co., Ltd. - Common Criteria CCEVS-VR-VID-11664-2026 - active

References

https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=05(Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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