CVE-2005-1849

Status: ModifiedMedium (5)—
inftrees.h in zlib 1.2.2 allows remote attackers to cause a denial of service (application crash) via an invalid file that causes a large dynamic tree to be produced.
CVSS

Version: 2.0
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Base score: 5
Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 4.08%
Percentile among all scored CVEs: 90
Score date: 10/6/2026
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)

Zlib — Zlib
CWEs

NVD-CWE-Other
References

Raw JSON (NVD)

Show
{
  "id": "CVE-2005-1849",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/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": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "security@debian.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2005-07-26T04:00:00.000",
  "references": [
    {
      "url": "ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2006.6/SCOSA-2006.6.txt",
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    {
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    {
      "url": "http://secunia.com/advisories/16137",
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    {
      "url": "http://secunia.com/advisories/17326",
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      "url": "http://www.redhat.com/support/errata/RHSA-2008-0629.html",
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      "url": "http://www.securityfocus.com/archive/1/464745/100/0/threaded",
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      "url": "http://www.ubuntulinux.org/usn/usn-151-3",
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      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/21456",
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      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11402",
      "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": "inftrees.h in zlib 1.2.2 allows remote attackers to cause a denial of service (application crash) via an invalid file that causes a large dynamic tree to be produced."
    },
    {
      "lang": "es",
      "value": "inftrees.h en zlib 1.2.2 permite que atacantes remotos realizen una dengación de servicio (caída de la aplicación) mediante un fichero inválido que hace que se produzca un arbol dinámico muy grande."
    }
  ],
  "lastModified": "2026-06-16T22:13:47.943",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:zlib:zlib:1.2.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6C77C974-9A8A-4F22-A680-5095552589BB"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@debian.org"
}