CVE-2026-8921

HIGHPre-NVD 8.58.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.5 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit probability: 0.1%, top 98% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: cna:asus, epss
Trending — 4 sources updated this week
8.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
8.5
EG Score
8.5(medium)
EPSS
2.5%
KEV
Not listed

Published

July 3, 2026

Last Modified

July 6, 2026

Advisory Details (1)

Auto-updated Jul 6, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

ASUS Security Advisory | Latest Vulnerability Update

https://www.asus.com/security-advisory

Vendor Advisories for CVE-2026-8921(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 10× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-06 16:43 UTCEG score recompute▲ 8.50
  2. 2026-07-06 16:43 UTCGHSA enrichment
  3. 2026-07-06 16:41 UTCMITRE cvelistV5CVSS v3 → 8.5 · CVSS v4 → 8.5
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 02:44 UTCEG score recompute
  6. 2026-07-06 02:44 UTCGHSA enrichment
  7. 2026-07-05 02:31 UTCEPSS rescore
  8. 2026-07-05 02:30 UTCEPSS rescore
  9. 2026-07-03 04:06 UTCEG score recompute
  10. 2026-07-03 04:06 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-8921?
CVE-2026-8921 is a high vulnerability published on July 3, 2026. 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.
When was CVE-2026-8921 disclosed?
CVE-2026-8921 was first published in the National Vulnerability Database on July 3, 2026, with the most recent update on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8921 actively exploited?
CVE-2026-8921 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-8921?
CVE-2026-8921 has a CVSS v3 base score of 8.5 (NVD).
How do I remediate CVE-2026-8921?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8921, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-8921

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