VULNERABILITY INTELLIGENCE

CVE-2021-39802

CVSS score7.8 HIGH
EPSS probability0.15%
CISA KEVNot currently listed
Published2022-04-12
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

In change_pte_range of mprotect.c , there is a possible way to make a shared mmap writable due to a permissions bypass. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-213339151References: Upstream kernel

Weakness classification

  • nvd@nist.gov: CWE-863

Primary references