CVE-2007-4003

Status: ModifiedMedium (6.9)—Exploit

Severity6.9Medium · CVSS 2.0

Exploitation probability1.75 %higher than 78% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitAvailablePublished on Exploit-DB

pioout in IBM AIX 5.3 SP6 allows local users to execute arbitrary code by specifying a malicious library with the -R (ParseRoutine) command line argument.

CVSS

Base score: 6.9
Version: 2.0
Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 1.75 %
Percentile among all scored CVEs: 78
Score date: 10/20/2026

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 · IBM AIX 5.3 SP6 - 'pioout' Arbitrary Library Loading Privilege Escalation (7/27/2007)

Affected technologies (1)

IBM — AIX

CWEs

NVD-CWE-Other

References

Show 18 references

Raw JSON (NVD)

Show

{
  "id": "CVE-2007-4003",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.9,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": true,
        "exploitabilityScore": 3.4,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
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  ],
  "published": "2007-07-26T22:30:00.000",
  "references": [
    {
      "url": "ftp://aix.software.ibm.com/aix/efixes/security/README",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=569",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/26219",
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    {
      "url": "http://www-1.ibm.com/support/docview.wss?uid=isg1IZ01121",
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    {
      "url": "http://www-1.ibm.com/support/docview.wss?uid=isg1IZ01122",
      "source": "cve@mitre.org"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.vupen.com/english/advisories/2007/2677",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/35628",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "pioout in IBM AIX 5.3 SP6 allows local users to execute arbitrary code by specifying a malicious library with the -R (ParseRoutine) command line argument."
    },
    {
      "lang": "es",
      "value": "pioout en IBM AIX 5.3 SP6 permite a usuarios locales ejecutar código de su elección especificando una libreria maliciosa con el argument de linea de comando -R (ParseRoutine)."
    }
  ],
  "lastModified": "2026-06-16T22:43:13.423",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "matchCriteriaId": "0BBBA4A5-D191-41D0-886C-C428F4F6252C"
            }
          ],
          "operator": "OR"
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  ],
  "sourceIdentifier": "cve@mitre.org"
}