CVE-2025-49809

Status: DeferredHigh (7.8)—

mtr through 0.95, in certain privileged contexts, mishandles execution of a program specified by the MTR_PACKET environment variable. NOTE: mtr on macOS may often have Sudo rules, as an indirect consequence of Homebrew not installing setuid binaries.

CVSS

Version: 3.1
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Base score: 7.8

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.18%
Percentile among all scored CVEs: 6
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.

ExploitationT1068 Exploitation for Privilege Escalationprivilege escalation85 %
Primary impactT1059 Command and Scripting Interpreterexecution80 %
Secondary impactT1548 Abuse Elevation Control Mechanismprivilege escalation75 %

Vulnerabilidad local (AV:L) en contextos privilegiados que abusa de MTR_PACKET para ejecutar código arbitrario con permisos elevados. Requiere acceso previo (PR:L) pero sin interacción, típico de escalada de privilegios (T1068) que resulta en ejecución de comandos con privilegios de administrador/ro

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

Execution Prevention Privileged Account Management Audit Update Software User Account Management Threat Intelligence Program

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

MTR — MTR^AI

CWEs

CWE-829

References

Raw JSON (NVD)

Show

{
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  "metrics": {
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          "options": [
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              "automatable": "no"
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          "version": "2.0.3",
          "timestamp": "2025-07-08T14:11:17.790058Z"
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          "userInteraction": "NONE",
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          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
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  "published": "2025-07-04T13:15:25.780",
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      "url": "https://github.com/Homebrew/homebrew-core/issues/35085",
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      "url": "https://github.com/traviscross/mtr/blob/master/SECURITY",
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      "value": "mtr through 0.95, in certain privileged contexts, mishandles execution of a program specified by the MTR_PACKET environment variable. NOTE: mtr on macOS may often have Sudo rules, as an indirect consequence of Homebrew not installing setuid binaries."
    },
    {
      "lang": "es",
      "value": "Desde mtr hasta la versión 0.95, en ciertos contextos privilegiados, se produce un error en la gestión de la ejecución de un programa especificado por la variable de entorno MTR_PACKET. NOTA: mtr en macOS puede tener reglas Sudo, como consecuencia indirecta de que Homebrew no instala los binarios setuid."
    }
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  "lastModified": "2026-06-17T09:31:56.657",
  "sourceIdentifier": "cve@mitre.org"
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