CVE-2001-0546

high

Description

Memory leak in H.323 Gatekeeper Service in Microsoft Internet Security and Acceleration (ISA) Server 2000 allows remote attackers to cause a denial of service (resource exhaustion) via a large amount of malformed H.323 data.

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/6989

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-045

http://www.securityfocus.com/bid/3196

Details

Source: Mitre, NVD

Published: 2001-09-20

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

EPSS

EPSS: 0.19067