9.8

CVE-2004-0847: microsoft asp.net Path Traversal

CVSS: 9.8v3.0CriticalModified
Published 06-10-2004Last modified 08-08-2024
Open JSON

Vulnerability summary

CVE-2004-0847 is a critical (CVSS 9.8) Path Traversal vulnerability in microsoft asp.net. EPSS estimates a 75.70% chance of exploitation in the next 30 days, higher than 99.5% of scored vulnerabilities. 2 public exploits are recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.0 (NVD)
EPSS score
75.70%
0%100%
Critical · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2reference, exploit-database

Timeline

  1. 06-10-2004
    PublishedVulnerability first disclosed.
  2. 08-08-2024
    Last modifiedVulnerability information updated.

Description

The Microsoft .NET forms authentication capability for ASP.NET allows remote attackers to bypass authentication for .aspx files in restricted directories via a request containing a (1) "\" (backslash) or (2) "%5C" (encoded backslash), aka "Path Validation Vulnerability."

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

75.70%

Chance of exploitation in the next 30 days

Percentile

100%

Versus all other CVEs

30-day change

0.00 pp

From 75.70% on 19-09-2026

19-09-202619-10-2026
EPSS score
75.70%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (archives.neohapsis.com)

    Maturity: unknown

  • exploit-databaseaspVerified

    Microsoft ASP.NET 1.x - URI Canonicalization Unauthorized Web Access

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Microsoft1 product

1 vendor · 1 product

References

9 links