CVE-1999-0504

highpriority · attend · 62OT risk · highEPSS 0.643 · 99 %ileexploit · weaponizedEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

6 exploits · weaponized

Likely / severe?

64.3% (99th) EPSS

CVSS 7.5 · high

Is it mine?

3 products

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-27

A Windows NT local user or administrator account has a default, null, blank, or missing password.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:P/E:Hsecondary · CVSS-BT (t0sche)

The CWE weakness classes this flaw belongs to.

CWE-259USLLM-inferredCWE-261USLLM-inferred

Public proof-of-concept and weaponised exploit code.

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
microsoft windows 2000all versionsnvdUScpe:2.3:o:microsoft:windows_2000:*:*:*:*:*:*:*:*
microsoft windows ntall versionsnvdUScpe:2.3:o:microsoft:windows_nt:*:*:*:*:*:*:*:*

Other names and identifiers for this entity.

Which sources assert this record, and when.

published 1997-01-01modified 2026-06-16

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.