UpHeron
All vulnerabilities

Servers and applications

CVE-2002-0843

Buffer overflows in the ApacheBench benchmark support program (ab.c) in Apache before 1.3.27, and Apache 2.x before 2.0.43, allow a malicious web server to cause a denial of service and possibly execute arbitrary code via a long response.

Severity
High 7.5
Published
11 Oct 2002
Last changed
16 Jun 2026
Added to UpHeron
17 Oct 2026
Exploit chance
21% in the next 30 daysHigher than 97% of CVEs. EPSS by FIRST, 12 Nov 2026
Attack
Over the network · No login needed
Attacker can
Read some data · Change some data · Slow it down
CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Sources
NVD

Affected software

SoftwareAffected versions
Apache HTTP ServerServers and applications · cpe:a:apache:http_server
  • Version 1.3.26
  • Version 1.3.25
  • Version 1.3.24
  • Version 1.3.23
All 18 release lines
  • Version 1.3
  • Version 1.3.1
  • Version 1.3.3
  • Version 1.3.4
  • Version 1.3.6
  • Version 1.3.9
  • Version 1.3.11
  • Version 1.3.12
  • Version 1.3.14
  • Version 1.3.17
  • Version 1.3.18
  • Version 1.3.19
  • Version 1.3.20
  • Version 1.3.22
  • Version 1.3.23
  • Version 1.3.24
  • Version 1.3.25
  • Version 1.3.26

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2002-0843
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2002-0843