SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityDeferred

CVE-2025-9338

A improper restriction of operations within the bounds of a memory buffer exists in AsIO3.sys driver.

HIGH 7.3EPSS 0.13%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.13%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A improper restriction of operations within the bounds of a memory buffer exists in AsIO3.sys driver. This vulnerability can be triggered by manually executing a specially crafted process, potentially leading to local privilage escalation. For additional information, please refer to the 'Security Update for Armoury Crate App' section of the ASUS Security Advisory.

CVSS 4.0
7.3 HIGHCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS
0.13% probability · 3th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-119
Source
54bf65a7-a193-42d2-b1ba-8e150d3c35e1
EPSS trend
0%3%5%26 October 2026: 0.13%26 October 202626 October 2026

EPSS 0.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.