Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to execute code over a network.
CVE-2026-48561
CRITICALPre-NVD 9.69.6—Trending — 4 sources updated this week
EchelonGraph scoreHIGH confidence
Score 9.6 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-14. a secondary CVSS source baseline 9.6; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: ghsa, secondary
9.6
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: —CVSS: 9.6Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.6
- EG Score
- 9.6(high)
- EPSS
- —
- KEV
- Not listed
Published
July 14, 2026
Last Modified
July 15, 2026
Advisory Details (1)
Auto-updated Jul 14, 2026Patch available. Sources: microsoft.
microsoft Patch Available
Security Update Guide - Microsoft Security Response Center
Security Update Guide - Microsoft Security Response Center. Patch available via Microsoft Security Update
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48561Vendor Advisories for CVE-2026-48561(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.
All Vendor Advisories
(1)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 8× in last 7d / 8× 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.
- 2026-07-15 01:43 UTCEG score recompute
- 2026-07-15 01:43 UTCGHSA enrichment
- 2026-07-14 21:29 UTCEG score recompute
- 2026-07-14 21:29 UTCVendor advisory
- 2026-07-14 21:29 UTCGHSA enrichment
- 2026-07-14 17:16 UTCEG score recompute
- 2026-07-14 17:16 UTCVendor advisory
- 2026-07-14 17:10 UTCMITRE cvelistV5first tracked
Frequently asked(4)
What is CVE-2026-48561?
CVE-2026-48561 is a critical vulnerability published on July 14, 2026. Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to execute code over a network.
When was CVE-2026-48561 disclosed?
CVE-2026-48561 was first published in the National Vulnerability Database on July 14, 2026, with the most recent update on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-48561?
CVE-2026-48561 has a CVSS v4.0 base score of 9.6 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-48561?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-48561, 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-2026-48561
Is Your Infrastructure Affected by CVE-2026-48561?
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