Is CVE-2026-8921 in the CISA KEV catalog?

No. CVE-2026-8921 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-8921?

CVE-2026-8921 has a CVSS v4 base score of 8.5 (HIGH).

What is the EPSS score for CVE-2026-8921?

CVE-2026-8921 has an EPSS score of 0.12% (2th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2026-8921?

No published fix for CVE-2026-8921 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2026-8921

HIGH

8.5

CVSS v4

NVD

Description

External Control of File Name or Path vulnerability in ASUS Business Manager allows a local user to execute arbitrary code with SYSTEM privileges via a tampered IPC message. Refer to the ' Security Update for ASUS Business Manager ' section on the ASUS Security Advisory for more information.

CWE-73External Control of File Name or Path

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v4 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

Impact

CVSS:4.0/AV:L/AC:L/AT:N/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Exploit Intelligence

0.12%probability of exploitation in 30 days

2ndpercentile

Low risk: more likely to be exploited than 2% of all known CVEs.

References

Other references1

asus.com

Related Vulnerabilities

Other CWE-73 (External Control of File Name or Path) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-39952	Critical	9.8	100%	-	Fix
CVE-2024-8517	Critical	9.8	95%	-	Fix
CVE-2023-4634	Critical	9.8	83%	-	Fix
CVE-2018-17246	Critical	9.8	82%	-	Fix
CVE-2024-43451	Medium	6.5	82%	KEV	Fix
CVE-2025-33053	High	8.8	82%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-03.