All vulnerabilities

Servers and applications

CVE-2013-2174

Heap-based buffer overflow in the curl_easy_unescape function in lib/escape.c in cURL and libcurl 7.7 through 7.30.0 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted string ending in a "%" (percent) character.

Severity
Medium 6.8
Published
31 Jul 2013
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
curlServers and applications · cpe:a:haxx:curl
  • Version 7.30.0
  • Version 7.29.0
  • Version 7.28.1
  • Version 7.28.0
All 81 release lines
  • Version 7.7
  • Version 7.7.1
  • Version 7.7.2
  • Version 7.7.3
  • Version 7.8
  • Version 7.8.1
  • Version 7.9
  • Version 7.9.1
  • Version 7.9.2
  • Version 7.9.3
  • Version 7.9.4
  • Version 7.9.5
  • Version 7.9.6
  • Version 7.9.7
  • Version 7.9.8
  • Version 7.10
  • Version 7.10.1
  • Version 7.10.2
  • Version 7.10.3
  • Version 7.10.4
  • Version 7.10.5
  • Version 7.10.6
  • Version 7.10.7
  • Version 7.10.8
  • Version 7.11.0
  • Version 7.11.1
  • Version 7.11.2
  • Version 7.12.0
  • Version 7.12.1
  • Version 7.12.2
  • Version 7.12.3
  • Version 7.13.0
  • Version 7.13.1
  • Version 7.13.2
  • Version 7.14.0
  • Version 7.14.1
  • Version 7.15.0
  • Version 7.15.1
  • Version 7.15.2
  • Version 7.15.3
  • Version 7.15.4
  • Version 7.15.5
  • Version 7.16.0
  • Version 7.16.1
  • Version 7.16.2
  • Version 7.16.3
  • Version 7.16.4
  • Version 7.17.0
  • Version 7.17.1
  • Version 7.18.0
  • Version 7.18.1
  • Version 7.18.2
  • Version 7.19.0
  • Version 7.19.1
  • Version 7.19.2
  • Version 7.19.3
  • Version 7.19.4
  • Version 7.19.5
  • Version 7.19.6
  • Version 7.19.7
  • Version 7.20.0
  • Version 7.20.1
  • Version 7.21.0
  • Version 7.21.1
  • Version 7.21.2
  • Version 7.21.3
  • Version 7.21.4
  • Version 7.21.5
  • Version 7.21.6
  • Version 7.21.7
  • Version 7.22.0
  • Version 7.23.0
  • Version 7.23.1
  • Version 7.24.0
  • Version 7.25.0
  • Version 7.26.0
  • Version 7.27.0
  • Version 7.28.0
  • Version 7.28.1
  • Version 7.29.0
  • Version 7.30.0
curlServers and applications · cpe:a:haxx:libcurl
  • Version 7.30.0
  • Version 7.29.0
  • Version 7.28.1
  • Version 7.28.0
All 81 release lines
  • Version 7.7
  • Version 7.7.1
  • Version 7.7.2
  • Version 7.7.3
  • Version 7.8
  • Version 7.8.1
  • Version 7.9
  • Version 7.9.1
  • Version 7.9.2
  • Version 7.9.3
  • Version 7.9.4
  • Version 7.9.5
  • Version 7.9.6
  • Version 7.9.7
  • Version 7.9.8
  • Version 7.10
  • Version 7.10.1
  • Version 7.10.2
  • Version 7.10.3
  • Version 7.10.4
  • Version 7.10.5
  • Version 7.10.6
  • Version 7.10.7
  • Version 7.10.8
  • Version 7.11.0
  • Version 7.11.1
  • Version 7.11.2
  • Version 7.12.0
  • Version 7.12.1
  • Version 7.12.2
  • Version 7.12.3
  • Version 7.13.0
  • Version 7.13.1
  • Version 7.13.2
  • Version 7.14.0
  • Version 7.14.1
  • Version 7.15.0
  • Version 7.15.1
  • Version 7.15.2
  • Version 7.15.3
  • Version 7.15.4
  • Version 7.15.5
  • Version 7.16.0
  • Version 7.16.1
  • Version 7.16.2
  • Version 7.16.3
  • Version 7.16.4
  • Version 7.17.0
  • Version 7.17.1
  • Version 7.18.0
  • Version 7.18.1
  • Version 7.18.2
  • Version 7.19.0
  • Version 7.19.1
  • Version 7.19.2
  • Version 7.19.3
  • Version 7.19.4
  • Version 7.19.5
  • Version 7.19.6
  • Version 7.19.7
  • Version 7.20.0
  • Version 7.20.1
  • Version 7.21.0
  • Version 7.21.1
  • Version 7.21.2
  • Version 7.21.3
  • Version 7.21.4
  • Version 7.21.5
  • Version 7.21.6
  • Version 7.21.7
  • Version 7.22.0
  • Version 7.23.0
  • Version 7.23.1
  • Version 7.24.0
  • Version 7.25.0
  • Version 7.26.0
  • Version 7.27.0
  • Version 7.28.0
  • Version 7.28.1
  • Version 7.29.0
  • Version 7.30.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2013-2174
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2013-2174