UpHeron
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Servers and applications

CVE-2007-1863

cache_util.c in the mod_cache module in Apache HTTP Server (httpd), when caching is enabled and a threaded Multi-Processing Module (MPM) is used, allows remote attackers to cause a denial of service (child processing handler crash) via a request with the (1) s-maxage, (2) max-age, (3) min-fresh, or (4) max-stale Cache-Control headers without a value.

Severity
Medium 5.0
Published
27 Jun 2007
Last changed
16 Jun 2026
Added to UpHeron
17 Oct 2026
Fixed in
2.0.61, 2.2.6
Exploit chance
12% in the next 30 daysHigher than 96% 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
  • From 2.0.37 before 2.0.61
  • From 2.2.0 before 2.2.6

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2007-1863
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2007-1863