UpHeron
All vulnerabilities

Servers and applications

CVE-2003-0253

The prefork MPM in Apache 2 before 2.0.47 does not properly handle certain errors from accept, which could lead to a denial of service.

Severity
Medium 5.0
Published
18 Aug 2003
Last changed
16 Jun 2026
Added to UpHeron
17 Oct 2026
Exploit chance
9.1% in the next 30 daysHigher than 95% 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 2.0.46
  • Version 2.0.45
  • Version 2.0.44
  • Version 2.0.43
All 15 release lines
  • Version 2.0
  • Version 2.0.28
  • Version 2.0.32
  • Version 2.0.35
  • Version 2.0.36
  • Version 2.0.37
  • Version 2.0.38
  • Version 2.0.39
  • Version 2.0.40
  • Version 2.0.41
  • Version 2.0.42
  • Version 2.0.43
  • Version 2.0.44
  • Version 2.0.45
  • Version 2.0.46

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2003-0253
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2003-0253