CVE-2002-0851

Status: ModifiedHigh (7.2)—Exploit

Severity7.2High · CVSS 2.0

Exploitation probability1.05 %higher than 64% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitAvailablePublished on Exploit-DB

Format string vulnerability in ISDN Point to Point Protocol (PPP) daemon (ipppd) in the ISDN4Linux (i4l) package allows local users to gain root privileges via format strings in the device name command line argument, which is not properly handled in a call to syslog.

CVSS

Base score: 7.2
Version: 2.0
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 1.05 %
Percentile among all scored CVEs: 64
Score date: 10/23/2026

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 · ISDN4Linux 3.1 - IPPPD Device String SysLog Format String (1) (8/10/2002)
Published on Exploit-DB · ISDN4Linux 3.1 - IPPPD Device String SysLog Format String (2) (8/10/2002)

Affected technologies (1)

Isdn4linux — Isdn4linux

CWEs

NVD-CWE-Other

References

Show 6 references

Raw JSON (NVD)

Show

{
  "id": "CVE-2002-0851",
  "cveTags": [],
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          "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"
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        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
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  "published": "2002-09-05T04:00:00.000",
  "references": [
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  "vulnStatus": "Modified",
  "weaknesses": [
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  "descriptions": [
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      "lang": "en",
      "value": "Format string vulnerability in ISDN Point to Point Protocol (PPP) daemon (ipppd) in the ISDN4Linux (i4l) package allows local users to gain root privileges via format strings in the device name command line argument, which is not properly handled in a call to syslog."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de cadena de formateo en demonio PPP (Point to Point Protocol) RDSI en el paquete ISDN4Linux (i4l) permite a usuarios locales ganar privilegios de root mediante candenas de formato en el argumento de línea de comandos de de nombre de dispositivo, que no es adecuadamente manejado en una llamada a syslog."
    }
  ],
  "lastModified": "2026-06-16T21:58:15.880",
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}