fkie_cve-2025-61984
Vulnerability from fkie_nvd
Published
2025-10-06 19:15
Modified
2025-11-04 22:16
Severity ?
3.6 (Low) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Summary
ssh in OpenSSH before 10.1 allows control characters in usernames that originate from certain possibly untrusted sources, potentially leading to code execution when a ProxyCommand is used. The untrusted sources are the command line and %-sequence expansion of a configuration file. (A configuration file that provides a complete literal username is not categorized as an untrusted source.)
References
cve@mitre.orghttps://marc.info/?l=openssh-unix-dev&m=175974522032149&w=2
cve@mitre.orghttps://www.openssh.com/releasenotes.html#10.1p1
cve@mitre.orghttps://www.openwall.com/lists/oss-security/2025/10/06/1
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2025/10/07/1
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2025/10/12/1
134c704f-9b21-4f2e-91b3-4a467353bcc0https://dgl.cx/2025/10/bash-a-newline-ssh-proxycommand-cve-2025-61984
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "ssh in OpenSSH before 10.1 allows control characters in usernames that originate from certain possibly untrusted sources, potentially leading to code execution when a ProxyCommand is used. The untrusted sources are the command line and %-sequence expansion of a configuration file. (A configuration file that provides a complete literal username is not categorized as an untrusted source.)"
    }
  ],
  "id": "CVE-2025-61984",
  "lastModified": "2025-11-04T22:16:37.567",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 3.6,
          "baseSeverity": "LOW",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 2.5,
        "source": "cve@mitre.org",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-10-06T19:15:36.157",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "https://marc.info/?l=openssh-unix-dev\u0026m=175974522032149\u0026w=2"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://www.openssh.com/releasenotes.html#10.1p1"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://www.openwall.com/lists/oss-security/2025/10/06/1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2025/10/07/1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2025/10/12/1"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://dgl.cx/2025/10/bash-a-newline-ssh-proxycommand-cve-2025-61984"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-159"
        }
      ],
      "source": "cve@mitre.org",
      "type": "Secondary"
    }
  ]
}


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