CVE-2007-1057

Status: ModifiedMedium (6.9)—💥 Exploit

The Net Direct client for Linux before 6.0.5 in Nortel Application Switch 2424, VPN 3050 and 3070, and SSL VPN Module 1000 extracts and executes files with insecure permissions, which allows local users to exploit a race condition to replace a world-writable file in /tmp/NetClient and cause another user to execute arbitrary code when attempting to execute this client, as demonstrated by replacing /tmp/NetClient/client.

CVSS

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

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 1.11%
Percentile among all scored CVEs: 65
Score date: 10/9/2026

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 · Nortel SSL VPN Linux Client 6.0.3 - Local Privilege Escalation (2/21/2007)

Affected technologies (1)

Nortel — NET Direct Client

CWEs

NVD-CWE-Other

References

Raw JSON (NVD)

Show

{
  "id": "CVE-2007-1057",
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          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "MEDIUM",
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  "published": "2007-02-21T23:28:00.000",
  "references": [
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    },
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      "lang": "es",
      "value": "El cliente Net Direct para Linux versiones anteriores a 6.0.5 de Nortel Application Switch 2424, VPN 3050 y 3070, y SSL VPN Module 1000 extrae y ejecuta ficheros con permisos inseguros, lo cual permite a usuarios locales explotar una condición de carrera para reemplazar un fichero re-escribible en /tmp/NetClient y causar que otro usuario ejecute código de su elección cuando intenta ejecutar ese cliente, como se demuestra reemplazando /tmp/NetClient/client."
    }
  ],
  "lastModified": "2026-06-16T22:36:50.583",
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