What is CVE-2014-0317?

CVE-2014-0317 is a vulnerability in Microsoft Windows Server 2003, classified under Improper Input Validation. Published 2014-03-12.

Is CVE-2014-0317 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Improper input validation in Microsoft Windows Server 2003

CVE-2014-0317

The Security Account Manager Remote (SAMR) protocol implementation in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, and Windows Server 2012 Gold and R2 does not properly determine the user-lockout state, which makes it easier for remote attackers to bypass the account lockout policy and obtain access via a brute-force attack, aka "SAMR Security Feature Bypass Vulnerability."

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2014-03-12 · last modified 2026-06-17.

CVSS v2 metric

CVSS v2 base score 5.4 (Medium). Vector: AV:N/AC:H/Au:N/C:N/I:C/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.102 (95.5th percentile), scored 2026-09-30.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 95.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.102 · newest: 0.102 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

CiscoDevNet/cisco-cyber-vision-api-scripts

References

docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-016 (vendor-advisory)

Frequently asked questions

What is CVE-2014-0317?: CVE-2014-0317 is a vulnerability in Microsoft Windows Server 2003, classified under Improper Input Validation. Published 2014-03-12.
Is CVE-2014-0317 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.