5.5

CVE-2006-2374: microsoft windows_2000 Improper Locking

CVSS: 5.5v3.1MediumModified
Published 13-06-2006Last modified 07-08-2024
Open JSON

Vulnerability summary

CVE-2006-2374 is a medium (CVSS 5.5) Improper Locking vulnerability in microsoft windows_2000. EPSS estimates a 1.75% chance of exploitation in the next 30 days, higher than 77.5% of scored vulnerabilities. 3 public exploits are recorded.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
1.75%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits3reference, exploit-database

Timeline

  1. 13-06-2006
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

Description

The Server Message Block (SMB) driver (MRXSMB.SYS) in Microsoft Windows 2000 SP4, XP SP1 and SP2, and Server 2003 SP1 and earlier allows local users to cause a denial of service (hang) by calling the MrxSmbCscIoctlCloseForCopyChunk with the file handle of the shadow device, which results in a deadlock, aka the "SMB Invalid Handle Vulnerability."

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.75%

Chance of exploitation in the next 30 days

Percentile

78%

Versus all other CVEs

30-day change

0.00 pp

From 1.75% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.75%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

3 found
  • referenceUnverified

    Exploit Reference (securityfocus.com)

    Maturity: unknown

  • exploit-databasedoswindowsVerified

    Microsoft SMB Driver - Local Denial of Service

    Maturity: poc

  • exploit-databaselocalwindowsVerified

    Microsoft Windows XP/2000 - 'Mrxsmb.sys' Local Privilege Escalation (MS06-030)

    Maturity: weaponized

Weaknesses

CWE · root cause

Affected systems

Microsoft3 products

1 vendor · 3 products

References

14 links
Show all 14 references