CVE-2001-0546
Memory leak in H.323 Gatekeeper Service in Microsoft Internet Security and Acceleration (ISA)...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2001-0546- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2001-0546- Updated
- 2026-11-02
EUVDEUVD-2001-0538 No score
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.
- Record
EUVD-2001-0538- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9ggc-843g-q3g8 No score
Memory leak in H.323 Gatekeeper Service in Microsoft Internet Security and Acceleration (ISA)...
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.
- Record
GHSA-9ggc-843g-q3g8- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2001-0546 is a medium vulnerability (CVSS 5.0) in Microsoft Isa Server, published September 20, 2001. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 17.3%, the 97th percentile. No source names a fixed version.