LiveActive security incident?Get immediate response
CVE Record

CVE-2000-0258: IIS 4.0 and 5.0 allows remote attackers to cause a denial of service by sending many URLs with a large numb...

IIS 4.0 and 5.0 allows remote attackers to cause a denial of service by sending many URLs with a large number of escaped characters, aka the "Myriad Escaped Characters" Vulnerability.

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysis

Security readout for executives and security teams

This is a legacy Microsoft IIS denial-of-service issue. A remote attacker could overwhelm IIS 4.0 or 5.0 with malformed URL requests, potentially making hosted websites unavailable. The source bundle does not identify data theft, code execution, or affected modern IIS versions. Exposure is most likely in legacy environments still running IIS 4.0 or 5.0, especially if internet-facing. The provided data does not support extending exposure to newer IIS versions or other Microsoft products. Treat this as a legacy availability risk. Prioritize only if IIS 4.0 or 5.0 remains in production, exposed to untrusted networks, or supports business-critical websites. Mitigation focus: Review Microsoft MS00-023 for the vendor-provided update or guidance.; Retire or isolate any remaining IIS 4.0 or 5.0 systems.; Remove direct internet exposure for unsupported legacy IIS hosts..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2000-0258 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.