VulnerabilityUndergoing Analysis

CVE-2026-45531

In read_boot_region of fsck.c, there is a possible out of bounds read due to a heap buffer overflow.

HIGH 7.8EPSS 0.08%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.08%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

In read_boot_region of fsck.c, there is a possible out of bounds read due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

CVSS 3.1: 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.08% probability · 0th percentile
CISA KEV: Not listed
Weakness: CWE-122
Source: security@android.com

References

https://source.android.com/docs/security/bulletin/2026/2026-09-01

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.