CVE-1999-1543

Status: ModifiedMedium (4.6)—💥 Exploit

MacOS uses weak encryption for passwords that are stored in the Users & Groups Data File.

CVSS

Version: 2.0
Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P
Base score: 4.6

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.83%
Percentile among all scored CVEs: 56
Score date: 10/13/2026

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 · Apple Mac OS 8 8.6 - Weak Password Encryption (7/10/1999)

Affected technologies (1)

Apple — Macos

CWEs

NVD-CWE-Other

References

Raw JSON (NVD)

Show

{
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          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
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        "impactScore": 6.4,
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  "published": "1999-07-10T04:00:00.000",
  "references": [
    {
      "url": "http://marc.info/?l=bugtraq&m=93188174906513&w=2",
      "source": "cve@mitre.org"
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  "vulnStatus": "Modified",
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  "descriptions": [
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      "lang": "en",
      "value": "MacOS uses weak encryption for passwords that are stored in the Users & Groups Data File."
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  ],
  "lastModified": "2026-06-16T21:50:40.950",
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