CVE-2006-1863

Status: ModifiedLow (2.1)—Exploit

Severity2.1Low · CVSS 2.0

Exploitation probability1.04 %higher than 64% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitAvailablePublished on Exploit-DB

Directory traversal vulnerability in CIFS in Linux 2.6.16 and earlier allows local users to escape chroot restrictions for an SMB-mounted filesystem via "..\\" sequences, a similar vulnerability to CVE-2006-1864.

CVSS

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

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 1.04 %
Percentile among all scored CVEs: 64
Score date: 10/21/2026

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).

Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Published on Exploit-DB · Linux Kernel 2.6.x - CIFS CHRoot Security Restriction Bypass (4/28/2006)

Affected technologies (1)

Linux — Linux Kernel

CWEs

NVD-CWE-Other

References

Show 38 references

Raw JSON (NVD)

Show

{
  "id": "CVE-2006-1863",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 2.1,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
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          "vendor": "n/a",
          "product": "n/a",
          "versions": [
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              "status": "affected",
              "version": "n/a"
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      ]
    }
  ],
  "published": "2006-04-25T22:02:00.000",
  "references": [
    {
      "url": "http://rhn.redhat.com/errata/RHBA-2007-0304.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/19868",
      "source": "secalert@redhat.com"
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    {
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    {
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      "source": "secalert@redhat.com"
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    {
      "url": "http://www.debian.org/security/2006/dsa-1103",
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    {
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      "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2006:150",
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    {
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    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10383",
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    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://secunia.com/advisories/19868",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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          "value": "NVD-CWE-Other"
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  "descriptions": [
    {
      "lang": "en",
      "value": "Directory traversal vulnerability in CIFS in Linux 2.6.16 and earlier allows local users to escape chroot restrictions for an SMB-mounted filesystem via \"..\\\\\" sequences, a similar vulnerability to CVE-2006-1864."
    }
  ],
  "lastModified": "2026-06-16T22:23:49.677",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A1F146DA-2787-4409-BE72-092CD275F3E5",
              "versionEndIncluding": "2.6.17"
            }
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          "operator": "OR"
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  "sourceIdentifier": "secalert@redhat.com"
}