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Servers and applications

CVE-2007-3947

request.c in lighttpd 1.4.15 allows remote attackers to cause a denial of service (daemon crash) by sending an HTTP request with duplicate headers, as demonstrated by a request containing two Location header lines, which results in a segmentation fault.

Severity
Medium 5.8
Published
24 Jul 2007
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
8.1% in the next 30 daysHigher than 94% of CVEs. EPSS by FIRST, 12 Nov 2026
Attack
Over the network · No login needed
Attacker can
Read some data · Slow it down
CVSS vector
AV:N/AC:M/Au:N/C:P/I:N/A:P
Sources
NVD

Affected software

SoftwareAffected versions
lighttpdServers and applications · cpe:a:lighttpd:lighttpd
  • Every version up to 1.4.15

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2007-3947
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2007-3947