CVE-2000-0226 — IIS 4.0 allows attackers to cause a denial of service by requesting a large buffer in a POST or PUT command which consumes memory, aka the "Chunked Transfer Encoding Buffer Overflow Vulnerability."

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MEDIUM

IIS 4.0 allows attackers to cause a denial of service by requesting a large buffer in a POST or PUT command which consumes memory, aka the "Chunked Transfer Encoding Buffer Overflow Vulnerability."

Published Jun 2, 2000

5.0

MEDIUM

CVSS 2.0

EPSS 6.81%

Description

IIS 4.0 allows attackers to cause a denial of service by requesting a large buffer in a POST or PUT command which consumes memory, aka the "Chunked Transfer Encoding Buffer Overflow Vulnerability."

Affected products

Remediation

No remediation recorded yet.

Metrics

6.81% 0.06808

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

EPSS probability 0.06808

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 (12 key points)

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

Date	Score	Percentile	Model
Oct 1, 2026	6.81% (0.06808)	93.81th	v5 (v2026.06.15)
Jun 15, 2026	6.81% (0.06808)	93.16th	v5 (v2026.06.15)
Mar 30, 2025	12.72% (0.12721)	93.37th	v4 (v2025.03.14)
Mar 29, 2025	13.75% (0.13746)	90.44th	v4 (v2025.03.14)
Mar 19, 2025	12.72% (0.12721)	93.14th	v4 (v2025.03.14)
Mar 17, 2025	10.50% (0.10496)	92.68th	v4 (v2025.03.14)
Dec 12, 2024	0.44% (0.00437)	75.56th	v3 (v2023.03.01)
Feb 8, 2024	0.44% (0.00437)	73.99th	v3 (v2023.03.01)
Mar 7, 2023	0.91% (0.00911)	80.36th	v3 (v2023.03.01)
Mar 6, 2023	4.70% (0.04700)	89.19th	v2 (v2022.01.01)
Apr 1, 2022	4.70% (0.04700)	88.10th	v2 (v2022.01.01)
Feb 4, 2022	4.70% (0.04700)	74.46th	v2 (v2022.01.01)

Weaknesses (0)

No CWE recorded.

References (2)

http://www.securityfocus.com/bid/1066
vdb-entryx_refsource_BID
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-018
vendor-advisoryx_refsource_MS

Link	Providers	Tags
http://www.securityfocus.com/bid/1066		vdb-entryx_refsource_BID
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-018		vendor-advisoryx_refsource_MS

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Jun 2, 2000

Updated Aug 8, 2024

Reserved Apr 12, 2000

Link CVE-2000-0226

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2000-0226

Red Hat

Severity n/a

Public date n/a

Links CVE-2000-0226