CVE-2026-26136

Status: AnalyzedHigh (7.5)—

Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to disclose information over a network.

CVSS

Version: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Base score: 7.5

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.92%
Percentile among all scored CVEs: 59
Score date: 10/5/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1190 Exploit Public-Facing Applicationinitial access95 %
Primary impactT1059 Command and Scripting Interpreterexecution85 %

Vector AV:N/PR:N/UI:N indica explotación remota sin privilegios (T1190). CWE-77 (command injection) en aplicación expuesta permite ejecución de comandos (T1059) con confidencialidad alta (C:H).

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Privileged Account Management Vulnerability Scanning Restrict Web-Based Content Network Segmentation Limit Software Installation Limit Access to Resource Over Network

Affected technologies (1)

Microsoft — Copilot

CWEs

CWE-77

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26136

Raw JSON (NVD)

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{
  "id": "CVE-2026-26136",
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      "sourceIdentifier": "secure@microsoft.com"
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  "published": "2026-03-19T21:17:07.883",
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      "tags": [
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      "source": "secure@microsoft.com"
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      "source": "secure@microsoft.com",
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      "value": "Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to disclose information over a network."
    },
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      "lang": "es",
      "value": "Neutralización incorrecta de elementos especiales utilizados en un comando ('inyección de comandos') en Microsoft Copilot permite a un atacante no autorizado divulgar información a través de una red."
    }
  ],
  "lastModified": "2026-06-17T10:25:47.423",
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