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Fencer Vulns
high 7.8

CVE-2007-0042 in the critical feed json

Interpretation conflict in ASP.NET in Microsoft .NET Framework 1.0, 1.1, and 2.0 for Windows 2000, XP, Server 2003, and Vista allows remote…

published 2007-07-10 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-0046

cvss
7.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
76.2%
EPSS 76.2% chance of exploitation in 30 days, percentile 99.5%
public exploits
1
Exploit-DB

Summary

Interpretation conflict in ASP.NET in Microsoft .NET Framework 1.0, 1.1, and 2.0 for Windows 2000, XP, Server 2003, and Vista allows remote attackers to access configuration files and obtain sensitive information, and possibly bypass security mechanisms that try to constrain the final substring of a string, via %00 characters, related to use of %00 as a string terminator within POSIX functions but a data character within .NET strings, aka "Null Byte Termination Vulnerability."

Timeline

  1. First public exploit (EDB-30281)
  2. Published

Exploit prediction

76.15% chance of exploitation in the next 30 days, higher than 99.5% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-30281 Microsoft .Net Framework 2.0 - Multiple Null Byte Injection Vulnerabilities remote, 2007-07-06

CVSS scores

assigned by version score vector
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:C/I:N/A:N

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.