UpHeron
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Servers and applications

CVE-2001-1342

Apache before 1.3.20 on Windows and OS/2 systems allows remote attackers to cause a denial of service (GPF) via an HTTP request for a URI that contains a large number of / (slash) or other characters, which causes certain functions to dereference a null pointer.

Severity
Medium 5.0
Published
12 May 2001
Last changed
16 Jun 2026
Added to UpHeron
17 Oct 2026
Exploit chance
30% in the next 30 daysHigher than 98% of CVEs. EPSS by FIRST, 12 Nov 2026
Attack
Over the network · No login needed
Attacker can
Slow it down
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Sources
NVD

Affected software

SoftwareAffected versions
Apache HTTP ServerServers and applications · cpe:a:apache:http_server
  • Version 1.3.19
  • Version 1.3.18
  • Version 1.3.17
  • Version 1.3.16
All 7 release lines
  • Version 1.3.12
  • Version 1.3.14
  • Version 1.3.15
  • Version 1.3.16
  • Version 1.3.17
  • Version 1.3.18
  • Version 1.3.19

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2001-1342
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2001-1342