Is CVE-2021-25489 being actively exploited?

Yes. CVE-2021-25489 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added on June 29, 2023.

What is the CVSS score for CVE-2021-25489?

CVE-2021-25489 has a CVSS 3.1 base score of 3.3 (LOW).

CVE-2021-25489

LOW · CVSS 3.3CISA KEV: actively exploitedEPSS 0.5%EU EUVD: exploited

Assuming radio permission is gained, missing input validation in modem interface driver prior to SMR Oct-2021 Release 1 results in format string bug leading to kernel panic.

Key facts

CVSS score: 3.3 (v3.1)
Severity: LOW
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Weakness (CWE): CWE-20
EPSS score: 0.5% (43th percentile)
In CISA KEV: Yes, added June 29, 2023
In EU EUVD: Yes (EUVD-2021-12385)
Published: October 6, 2021
NVD last modified: June 17, 2026
Status: Analyzed

CISA Known Exploited Vulnerability

Samsung Mobile Devices Improper Input Validation Vulnerability

Added to the KEV catalog on June 29, 2023; federal remediation due July 20, 2023.

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2021-12385 in the EU Vulnerability Database. ENISA flags it as known exploited. Last updated in EUVD on October 21, 2025.

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

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

Samsung Galaxy Devices on Android 11 - Fall - Samsung Electronics Co., Ltd. - Common Criteria CCEVS-VR-VID-11211-2021 - archived
Samsung Galaxy Devices on Android 11 - Spring - Samsung Electronics Co., Ltd. - Common Criteria CCEVS-VR-VID-11160-2021 - archived
Samsung Galaxy Devices on Android 10 - Fall - Samsung Electronics Co., Ltd. - Common Criteria CCEVS-VR-VID-11109-2020 - archived
Samsung Galaxy Devices on Android 10 - Spring - Samsung Electronics Co., Ltd. - Common Criteria CCEVS-VR-VID-11042-2020 - archived
Samsung Galaxy Devices with Android 9 - Fall - Samsung Electronics Co., Ltd. - Common Criteria CCEVS-VR-VID-11018-2019 - archived

See all 9 in the Security Certifications Explorer.

References

https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10(Vendor Advisory)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-25489(US Government Resource)

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

Query CVEs from your AI assistant

The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.

Add the CVE brain