CVE-2000-0849 — Race condition in Microsoft Windows Media server allows remote attackers to cause a denial of service in the Windows Media Unicast Service via a malformed request, aka the "Unicast Service Race Condition" vulnerability

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LOW

Race condition in Microsoft Windows Media server allows remote attackers to cause a denial of service in the Windows Media Unicast Service via a malformed request, aka the "Unicast Service Race Condition" vulnerability

Published Jan 22, 2001

2.6

LOW

CVSS 2.0

EPSS 14.98%

Description

Race condition in Microsoft Windows Media server allows remote attackers to cause a denial of service in the Windows Media Unicast Service via a malformed request, aka the "Unicast Service Race Condition" vulnerability.

Affected products

Remediation

No remediation recorded yet.

Metrics

14.98% 0.14976

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.14976

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (9 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	14.98% (0.14976)	96.62th	v5 (v2026.06.15)
Jun 15, 2026	14.98% (0.14976)	96.28th	v5 (v2026.06.15)
Mar 17, 2025	10.17% (0.10174)	92.54th	v4 (v2025.03.14)
Dec 17, 2024	93.25% (0.93250)	99.29th	v3 (v2023.03.01)
Feb 8, 2024	0.61% (0.00612)	78.01th	v3 (v2023.03.01)
Mar 7, 2023	0.61% (0.00612)	75.38th	v3 (v2023.03.01)
Mar 6, 2023	11.68% (0.11676)	95.15th	v2 (v2022.01.01)
Apr 1, 2022	11.68% (0.11676)	94.76th	v2 (v2022.01.01)
Feb 4, 2022	11.68% (0.11676)	88.93th	v2 (v2022.01.01)

Weaknesses (0)

No CWE recorded.

References (3)

http://www.securityfocus.com/bid/1655
vdb-entryx_refsource_BIDPatchVendor Advisory
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-064
vendor-advisoryx_refsource_MS
https://exchange.xforce.ibmcloud.com/vulnerabilities/5193
vdb-entryx_refsource_XF

Link	Providers	Tags
http://www.securityfocus.com/bid/1655		vdb-entryx_refsource_BIDPatchVendor Advisory
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-064		vendor-advisoryx_refsource_MS
https://exchange.xforce.ibmcloud.com/vulnerabilities/5193		vdb-entryx_refsource_XF

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Jan 22, 2001

Updated Aug 8, 2024

Reserved Oct 18, 2000

Link CVE-2000-0849

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2000-0849

Red Hat

Severity n/a

Public date n/a

Links CVE-2000-0849