FKIE_CVE-2026-45266

Vulnerability from fkie_nvd - Published: 2026-06-01 17:17 - Updated: 2026-07-22 07:10
Severity
3.5 (Low) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Summary
Nextcloud is an open source content collaboration platform. Prior to versions 21.1.10, 22.0.11, and 23.0.3, a low-privileged user can force other user's microphones to be muted in calls when no High-performance Backend is installed. This issue has been patched in versions 21.1.10, 22.0.11, and 23.0.3.
References
security-advisories@github.comhttps://github.com/nextcloud/security-advisories/security/advisories/GHSA-x75r-65hm-cw35
security-advisories@github.comhttps://github.com/nextcloud/spreed/pull/17577
security-advisories@github.comhttps://hackerone.com/reports/3636758
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "security-advisories",
          "vendor": "nextcloud",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 21.1.10"
            },
            {
              "status": "affected",
              "version": "\u003c 22.0.11"
            },
            {
              "status": "affected",
              "version": "\u003c 23.0.3"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Nextcloud is an open source content collaboration platform. Prior to versions 21.1.10, 22.0.11, and 23.0.3, a low-privileged user can force other user\u0027s microphones to be muted in calls when no High-performance Backend is installed. This issue has been patched in versions 21.1.10, 22.0.11, and 23.0.3."
    },
    {
      "lang": "es",
      "value": "Nextcloud es una plataforma de colaboraci\u00f3n de contenido de c\u00f3digo abierto. Antes de las versiones 21.1.10, 22.0.11 y 23.0.3, un usuario con pocos privilegios puede forzar que los micr\u00f3fonos de otros usuarios se silencien en las llamadas cuando no hay un Backend de alto rendimiento instalado. Este problema ha sido parcheado en las versiones 21.1.10, 22.0.11 y 23.0.3."
    }
  ],
  "id": "CVE-2026-45266",
  "lastModified": "2026-07-22T07:10:00.107",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 3.5,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.1,
        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-45266",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-01T17:35:39.122672Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-01T17:17:09.827",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x75r-65hm-cw35"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/nextcloud/spreed/pull/17577"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://hackerone.com/reports/3636758"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-284"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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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

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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.


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