UpHeron
All vulnerabilities

Servers and applications

CVE-2010-0639

The htcpHandleTstRequest function in htcp.c in Squid 2.x before 2.6.STABLE24 and 2.7 before 2.7.STABLE8, and htcp.cc in 3.0 before 3.0.STABLE24, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via crafted packets to the HTCP port.

Severity
Medium 5.0
Published
15 Feb 2010
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
31% 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
SquidServers and applications · cpe:a:squid-cache:squid
  • Version 3.0.stable23
  • Version 3.0.stable22
  • Version 3.0.stable21
  • Version 3.0.stable20
All 33 release lines
  • Version 2.0
  • Version 2.1
  • Version 2.2
  • Version 2.3
  • Version 2.4
  • Version 2.5
  • Version 2.6
  • Version 2.7
  • Version 2.7-stable3
  • Version 2.7-stable4
  • Version 3.0
  • Version 3.0.stable1
  • Version 3.0.stable2
  • Version 3.0.stable3
  • Version 3.0.stable4
  • Version 3.0.stable5
  • Version 3.0.stable6
  • Version 3.0.stable7
  • Version 3.0.stable8
  • Version 3.0.stable9
  • Version 3.0.stable11
  • Version 3.0.stable12
  • Version 3.0.stable13
  • Version 3.0.stable14
  • Version 3.0.stable15
  • Version 3.0.stable16
  • Version 3.0.stable17
  • Version 3.0.stable18
  • Version 3.0.stable19
  • Version 3.0.stable20
  • Version 3.0.stable21
  • Version 3.0.stable22
  • Version 3.0.stable23

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2010-0639
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2010-0639