Is CVE-2021-25487 being actively exploited?

Yes. CVE-2021-25487 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added on June 29, 2023.

What is the CVSS score for CVE-2021-25487?

CVE-2021-25487 has a CVSS 3.1 base score of 7.3 (HIGH).

CVE-2021-25487

HIGH · CVSS 7.3CISA KEV: actively exploitedEPSS 0.6%EU EUVD: exploited

Lack of boundary checking of a buffer in set_skb_priv() of modem interface driver prior to SMR Oct-2021 Release 1 allows OOB read and it results in arbitrary code execution by dereference of invalid function pointer.

Key facts

CVSS score: 7.3 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Weakness (CWE): CWE-125
EPSS score: 0.6% (49th percentile)
In CISA KEV: Yes, added June 29, 2023
In EU EUVD: Yes (EUVD-2021-12383)
Published: October 6, 2021
NVD last modified: June 17, 2026
Status: Analyzed

CISA Known Exploited Vulnerability

Samsung Mobile Devices Out-of-Bounds Read 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-2021-12383 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-2021-25487(US Government Resource)

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

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