Out-of-bounds Read in Linux
CVE-2026-64209
In the Linux kernel, the following vulnerability has been resolved: phy: qcom: qmp-usbc: Fix out-of-bounds array access in dp swing config swing_tbl and pre_emphasis_tbl are 4x4 arrays (valid indices 0-3), but the boundary check uses "> 4" instead of ">= 4", allowing index 4 to cause an out-of-bounds access.
Vulnerability class: Buffer Overflow
EPSS: 0.001 (1.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.
Affected products
- Linux — versions 81791c45c8e0eaeba9a40927eecd082a8500f709, 7.0, 0
- Linux Linux_kernel — versions 7.1
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-64209?
- CVE-2026-64209 is a high-severity vulnerability in Linux, classified under Out-of-bounds Read. CVSS score: 7.1/10. Published 2026-07-24.
- How severe is CVE-2026-64209?
- High severity. CVSS v3 base score is 7.1 out of 10.