CVE-2003-0447
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The Custom HTTP Errors capability in Internet Explorer 5.01, 5.5 and 6.0 allows remote attackers to execute script in the Local Zone via an argument…
rank 22 = 3 + 13 + 1 + 5 + 0
rank@v1 · backlog
Someone is already using it
CISA KEV catalog · public proof-of-concept · FIRST EPSS
EPSS 0.13685 · without this subject the record ranks 19
What it costs you if it fires
NVD CVSS base score, then the CNA's own
CVSS 5.1, from NVD · without this subject the record ranks 9
It is getting worse, not staying still
FIRST EPSS series, rescorings and bad loads removed
rose on 2025-10-13 · without this subject the record ranks 21
How much of the world it touches
NVD CPE configurations
3 products in the CPE ranges · without this subject the record ranks 17
Someone else already set the date
CISA KEV remediation due date
no CISA due date · without this subject the record ranks 22
$440,000 = $4.99M incident cost x 0.6442432101309884 exposure x 0.13685 likelihood
udv@v1 · unaudited · wrong for you until you say what you run
$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.
Hindsight · the state
Foresight · where to check next
No weakness class or product neighbourhood is held for this record, so this index cannot name anywhere to check next. That is an absence in the record, not a finding about the software.
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Harm, if it fires from the vector and the weakness
Written for the ticket you're about to file.
CISA KEV & Federal Remediation Deadline from the record and CISA
The fix, and how long it's been waiting.
Exploit Status & Known PoCs a ladder, not a score
Current rung: Nothing observed in held sources.
- RUNG 1Nothing observed in held sources
- RUNG 2Proof-of-concept published
- RUNG 3Exploited in the wild · CISA KEV listed
- RUNG 4Ransomware campaign use known
A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.
What it is stated by the CNA
The Custom HTTP Errors capability in Internet Explorer 5.01, 5.5 and 6.0 allows remote attackers to execute script in the Local Zone via an argument to shdocvw.dll that causes a "javascript:" link to be generated. receipt
NVD's analysis a second authority
- severity
- 5.1 AV:N/AC:H/Au:N/C:P/I:P/A:P
- affected versions
- microsoft internet explorer 5.01; microsoft internet explorer 5.5; microsoft internet explorer 6.0
check it yourself lists.grok.org.uk marc.info security.greymagic.com marc.info receipt
Dated events
Movement the material steps
Show all 16 observations
16 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt
The full biography
The record had been public for 22 years, 11 months when this index was last written.
Siblings and hubs
Records related to this one
None. No alias set, and nothing in the corpus cites this identifier or shares its product family within 60 days.
Browse the index from here
These are index-wide views, not findings about CVE-2003-0447.
What usually comes next
Everything above needs no account. What is below is work: assembling it, scoping it to your estate, watching it, and handing it to someone else.