What is CVE-2021-25518?

CVE-2021-25518 is a medium-severity vulnerability in Google Android, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.4/10. Published 2021-12-08.

How severe is CVE-2021-25518?

Medium severity. CVSS v3 base score is 6.4 out of 10.

Buffer overflow in Google Android

CVE-2021-25518

An improper boundary check in secure_log of LDFW and BL31 prior to SMR Dec-2021 Release 1 allows arbitrary memory write and code execution.

Vulnerability class: Buffer Overflow

EPSS: 0.001 (1.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Google Android — versions 9.0, 10.0, 11.0
Samsung Mobile Devices — versions P(9.0), Q(10.0), R(11.0) devices with selected Exynos chipsets

Weakness classification (CWE)

References

mobile.security@samsung.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-25518?: CVE-2021-25518 is a medium-severity vulnerability in Google Android, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.4/10. Published 2021-12-08.
How severe is CVE-2021-25518?: Medium severity. CVSS v3 base score is 6.4 out of 10.