Which products and versions are affected by CVE-2002-0079?

Affected: Internet Information Server (Microsoft) versions 4.0; Internet Information Services (Microsoft) versions 5.0. The full list is in the CVE brief.

Is CVE-2002-0079 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2002-0079 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2002-0079?

Public exploit code is available.

Is there a fix for CVE-2002-0079?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2002-0079 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2002-0079

HighPublic exploit

Buffer overflow in the chunked encoding transfer mechanism in Internet Information Server (IIS) 4.0 and 5.0 Active Server Pages allows attackers to cause a denial of service or execute arbitrary code.

Published Apr 22, 2002 · Updated Apr 15, 2026

Key Facts

Patch immediately

CVE-2002-0079 is a high-severity vulnerability (CVSS 7.5 v2) affecting Internet Information Server (Microsoft), Internet Information Services (Microsoft).
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 77% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v2

7.5

AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS (30-day exploit likelihood)

77%

Higher than 99.5% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2002-0079 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Affected Products

2 affected entries in total

Product	Affected versions	Fixed in
Internet Information ServerMicrosoft	4.0	n/a
Internet Information ServicesMicrosoft	5.0	n/a

Timeline

Publicly disclosed
Apr 22, 2002
Last updated
Apr 15, 2026

References

exploitExploitDB-21368
exploitExploitDB-21369
exploitExploitDB-21370
exploitExploitDB-21371
other20020410 Windows 2000 and NT4 IIS .ASP Remote Buffer Overflow

8 more references in the full CVE brief

FAQ

Common Questions.

Buffer overflow in the chunked encoding transfer mechanism in Internet Information Server (IIS) 4.0 and 5.0 Active Server Pages allows attackers to cause a denial of service or execute arbitrary code.
Affected: Internet Information Server (Microsoft) versions 4.0; Internet Information Services (Microsoft) versions 5.0. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2002-0079 Running On Your Attack Surface?

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