CVE-1999-1324

Name: CVE-1999-1324
Creator: NVD / NIST
Published: 1999-12-31T05:00:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.09%

Last modified Jun 16, 2026

CVE-1999-1324 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. VAXstations running Open VMS 5.3 through 5.5-2 with VMS DECwindows or MOTIF do not properly disable access to user accounts that exceed the break-in limit threshold for failed login attempts, which makes it easier for attackers to conduct brute force password guessing.. EPSS estimates a 3.09% chance of exploitation in the next 30 days.

Description

VAXstations running Open VMS 5.3 through 5.5-2 with VMS DECwindows or MOTIF do not properly disable access to user accounts that exceed the break-in limit threshold for failed login attempts, which makes it easier for attackers to conduct brute force password guessing.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

3.09%

86.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-307

Affected Software

Vendor	Product	Versions
Hp	Openvms Vax	>= 5.3, <= 5.5.2

References

http://ciac.llnl.gov/ciac/bulletins/d-06.shtmlBroken Link, Patch, Third Party Advisory, US Government Resource, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/7225Third Party Advisory, VDB Entry
http://ciac.llnl.gov/ciac/bulletins/d-06.shtmlBroken Link, Patch, Third Party Advisory, US Government Resource, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/7225Third Party Advisory, VDB Entry

Timeline

Published: Dec 31, 1999
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-1999-1324?

How severe is CVE-1999-1324?

CVE-1999-1324 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.09% probability of exploitation in the next 30 days.

How do I fix CVE-1999-1324?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-1999-1324?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST