CVE-1999-0693

Status: ModifiedHigh (7.2)—💥 Exploit

Buffer overflow in TT_SESSION environment variable in ToolTalk shared library allows local users to gain root privileges.

CVSS

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

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 1.03%
Percentile among all scored CVEs: 63
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).

💥 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 · DIGITAL UNIX 4.0 d/f / AIX 4.3.2 / CDE 2.1 / IRIX 6.5.14 / Solaris 7.0 / SunOS 4.1.4 - Local Buffer Overflow (9/13/1999)

Affected technologies (3)

HP — Hp-ux IBM — AIX SCO — Unixware

CWEs

NVD-CWE-Other

References

Raw JSON (NVD)

Show

{
  "id": "CVE-1999-0693",
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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",
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        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": true,
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  "published": "2000-03-02T05:00:00.000",
  "references": [
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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  "descriptions": [
    {
      "lang": "en",
      "value": "Buffer overflow in TT_SESSION environment variable in ToolTalk shared library allows local users to gain root privileges."
    }
  ],
  "lastModified": "2026-06-16T21:48:51.690",
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}