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Fencer Vulns
medium 6.8

CVE-2007-1584 json

Buffer underflow in the header function in PHP 5.2.0 allows context-dependent attackers to execute arbitrary code by passing an all-whitesp…

published 2007-03-21 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-1578

cvss
6.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.3%
EPSS 5.3% chance of exploitation in 30 days, percentile 92%
public exploits
2
Exploit-DB

Summary

Buffer underflow in the header function in PHP 5.2.0 allows context-dependent attackers to execute arbitrary code by passing an all-whitespace string to this function, which causes it to write '\0' characters in whitespace that precedes the string.

Timeline

  1. First public exploit (EDB-3460)
  2. Published

Exploit prediction

5.32% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-3517 PHP 5.2.0 (OSX) - 'header()' Space Trimming Buffer Underflow local, 2007-03-19
  • EDB-3460 PHP 5.2.0 (OSX) - EXT/Filter Space Trimming Buffer Underflow local, 2007-03-12

CVSS scores

assigned by version score vector
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Technology feeds

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.