FKIE_CVE-2025-27093

Vulnerability from fkie_nvd - Published: 2025-10-28 20:15 - Updated: 2026-10-08 11:10
Severity
6.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Summary
Sliver is a command and control framework that uses a custom Wireguard netstack. In versions 1.5.43 and earlier, and in development version 1.6.0-dev, the netstack does not limit traffic between Wireguard clients. This allows clients to communicate with each other unrestrictedly, potentially enabling leaked or recovered keypairs to be used to attack operators or allowing port forwardings to be accessible from other implants.
References
security-advisories@github.comhttps://github.com/BishopFox/sliver/commit/8e5c5f14506d6d60ebb3362e6b9857ab1e0d76ff
security-advisories@github.comhttps://github.com/BishopFox/sliver/commit/9122878cbbcae543eb8210f616550382af2065fd
security-advisories@github.comhttps://github.com/BishopFox/sliver/security/advisories/GHSA-q8j9-34qf-7vq7
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/BishopFox/sliver/security/advisories/GHSA-q8j9-34qf-7vq7
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "sliver",
          "vendor": "BishopFox",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= 1.5.43"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Sliver is a command and control framework that uses a custom Wireguard netstack. In versions 1.5.43 and earlier, and in development version 1.6.0-dev, the netstack does not limit traffic between Wireguard clients. This allows clients to communicate with each other unrestrictedly, potentially enabling leaked or recovered keypairs to be used to attack operators or allowing port forwardings to be accessible from other implants."
    },
    {
      "lang": "es",
      "value": "Sliver es un framework de comando y control que utiliza un netstack Wireguard personalizado. En las versiones 1.5.43 y anteriores, y en la versi\u00f3n de desarrollo 1.6.0-dev, el netstack no limita el tr\u00e1fico entre clientes Wireguard. Esto permite a los clientes comunicarse entre s\u00ed sin restricciones, lo que podr\u00eda permitir que pares de claves filtrados o recuperados se utilicen para atacar a los operadores o permitir que los reenv\u00edos de puertos sean accesibles desde otros implantes."
    }
  ],
  "id": "CVE-2025-27093",
  "lastModified": "2026-10-08T11:10:00.250",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-27093",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-10-29T17:43:49.558008Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-10-28T20:15:47.897",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/BishopFox/sliver/commit/8e5c5f14506d6d60ebb3362e6b9857ab1e0d76ff"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/BishopFox/sliver/commit/9122878cbbcae543eb8210f616550382af2065fd"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/BishopFox/sliver/security/advisories/GHSA-q8j9-34qf-7vq7"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/BishopFox/sliver/security/advisories/GHSA-q8j9-34qf-7vq7"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-284"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.