CVE-1999-1449

Status: ModifiedLow (2.1)—

SunOS 4.1.4 on a Sparc 20 machine allows local users to cause a denial of service (kernel panic) by reading from the /dev/tcx0 TCX device.

CVSS

Version: 2.0
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P
Base score: 2.1

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.29%
Percentile among all scored CVEs: 19
Score date: 10/8/2026

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).

Affected technologies (1)

SUN — Sunos

CWEs

NVD-CWE-Other

References

Raw JSON (NVD)

Show

{
  "id": "CVE-1999-1449",
  "cveTags": [],
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        "source": "nvd@nist.gov",
        "cvssData": {
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          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
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              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "1997-05-19T04:00:00.000",
  "references": [
    {
      "url": "http://oamk.fi/~jukkao/bugtraq/before-971202/0498.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.insecure.org/sploits/sunos.dev.tcx0.write.wierd.shit.to.device.bug.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://oamk.fi/~jukkao/bugtraq/before-971202/0498.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.insecure.org/sploits/sunos.dev.tcx0.write.wierd.shit.to.device.bug.html",
      "tags": [
        "Vendor Advisory"
      ],
      "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": "SunOS 4.1.4 on a Sparc 20 machine allows local users to cause a denial of service (kernel panic) by reading from the /dev/tcx0 TCX device."
    }
  ],
  "lastModified": "2026-06-16T21:50:27.857",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
              "matchCriteriaId": "1070749A-65E9-439A-A7CC-3CE529A5D5E7"
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          "operator": "OR"
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  "sourceIdentifier": "cve@mitre.org"
}