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CVE-2009-4642

Status: ModifiedHigh (7.2)—

gnome-screensaver 2.26.1 relies on the gnome-session D-Bus interface to determine session idle time, even when an Xfce desktop such as Xubuntu or Mythbuntu is used, which allows physically proximate attackers to access an unattended workstation on which screen locking had been intended.

CVSS

Exploitation probability (EPSS)

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).

Affected technologies (1)

Gnome — Screensaver

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2009-4642",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.2,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2010-02-11T21:30:00.627",
  "references": [
    {
      "url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=536381",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://bugzilla.xfce.org/show_bug.cgi?id=5927",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://bugzilla.gnome.org/show_bug.cgi?id=592093",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://launchpad.net/bugs/411350",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://launchpad.net/bugs/493573",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=536381",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://bugzilla.xfce.org/show_bug.cgi?id=5927",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugzilla.gnome.org/show_bug.cgi?id=592093",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://launchpad.net/bugs/411350",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://launchpad.net/bugs/493573",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "gnome-screensaver 2.26.1 relies on the gnome-session D-Bus interface to determine session idle time, even when an Xfce desktop such as Xubuntu or Mythbuntu is used, which allows physically proximate attackers to access an unattended workstation on which screen locking had been intended."
    },
    {
      "lang": "es",
      "value": "gnome-screensaver v2.26.1 confía en el interfaz gnome-session D-Bus para determinar el tiempo idle de sesión, incluso cuando se usa un escritorio Xfce como Xubuntu o Mythbuntu, lo que permite a atacantes físicamente próximos , acceder un ordenador sin nadie sobre el que se ha bloqueado la pantalla de manera intencionada."
    }
  ],
  "lastModified": "2026-06-16T23:14:05.030",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:gnome:screensaver:2.26.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "78D89DE8-E8AA-4E25-B251-5C641F3DB452"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}