CVE-1999-0412

highpriority · track · 44EPSS 0.102 · 96 %ileexploit · functionalEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · functional

Likely / severe?

10.2% (96th) EPSS

CVSS 7.5 · high

Is it mine?

4 products

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-27

In IIS and other web servers, an attacker can attack commands as SYSTEM if the server is running as SYSTEM and loading an ISAPI extension.

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⚠ sources disagree · medium–high · 6.8–7.5

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

v2.06.8mediumAV:N/AC:L/Au:N/C:P/I:P/A:P/E:POCsecondary · CVSS-BT (t0sche)

The CWE weakness classes this flaw belongs to.

CWE-250USLLM-inferredCWE-269USLLM-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 internet information server= 3.0nvdUScpe:2.3:a:microsoft:internet_information_server:*:*:*:*:*:*:*:*
microsoft internet information server= 4.0nvdUScpe:2.3:a:microsoft:internet_information_server:*:*:*:*:*:*:*:*
microsoft internet information services= 2.0nvdUScpe:2.3:a:microsoft:internet_information_services:*:*:*:*:*:*:*:*

Other names and identifiers for this entity.

Which sources assert this record, and when.

published 1999-02-19modified 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.