UpHeron
All vulnerabilities

Servers and applications

CVE-2013-1912

Buffer overflow in HAProxy 1.4 through 1.4.22 and 1.5-dev through 1.5-dev17, when HTTP keep-alive is enabled, using HTTP keywords in TCP inspection rules, and running with rewrite rules that appends to requests, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via crafted pipelined HTTP requests that prevent request realignment from occurring.

Severity
Medium 5.1
Published
10 Apr 2013
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Exploit chance
5.6% in the next 30 daysHigher than 92% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Memory buffer errors (CWE-119)
Attack
Over the network · Only under certain conditions · No login needed
Attacker can
Read some data · Change some data · Slow it down
CVSS vector
AV:N/AC:H/Au:N/C:P/I:P/A:P
Sources
NVD

Affected software

SoftwareAffected versions
HAProxyServers and applications · cpe:a:haproxy:haproxy
  • Version 1.4
  • Version 1.4.20
  • Version 1.4.22
  • Version 1.5-dev
  • Version 1.5-dev17

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2013-1912
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2013-1912