CVE-2018-21065

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-04-08 · updated 2026-06-17
Weakness: CWE-191

Description

An issue was discovered on Samsung mobile devices with M(6.0), N(7.x), and O(8.x) software. There is an integer underflow in eCryptFS because of a missing size check. The Samsung ID is SVE-2017-11855 (August 2018).

Affected products

Android: 6.0, 7.0, 7.1.0, 7.1.1, 7.1.2, 8.0 (+1)

References

https://security.samsungmobile.com/securityUpdate.smsb
https://security.samsungmobile.com/securityUpdate.smsb

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