F5 BIG-IP - libxml2 vulnerability CVE-2015-8806

F5 BIG-IP libxml2 vulnerability CVE-2015-8806. Remote attackers can cause denial of service

Reporter	Title	Published	Views	Family All 112
IBM Security Bulletins	Security Bulletin: Vulnerabilities in libxml2 affect IBM RackSwitch Networking products	31 Jan 201902:25	–	ibm
IBM Security Bulletins	Security Bulletin: IBM Security Guardium is affected by a OpenSource LibXML2 vulnerability	12 Jul 201817:13	–	ibm
IBM Security Bulletins	Security Bulletin: IBM Cognos Analytics is affected by multiple vulnerabilities	15 Jun 201823:17	–	ibm
IBM Security Bulletins	Security Bulletin: Vulnerabilities in ntp, libxml2, openssh, sqlite and python-base affect IBM BladeCenter Advanced Management Module (AMM)	14 Apr 202314:32	–	ibm
IBM Security Bulletins	Security Bulletin: Vulnerabilities in libxml2 affect IBM Flex System Networking Switch products	31 Jan 201902:25	–	ibm
IBM Security Bulletins	Security Bulletin: IBM Cognos AnalyticsのLibxml2脆弱性について	15 Jun 201823:50	–	ibm
IBM Security Bulletins	Security Bulletin: IBM Cognos Business Intelligence Server 2016Q4 Security Updater : IBM Cognos Business Intelligence Server is affected by multiple vulnerabilities.	15 Jun 201823:17	–	ibm
IBM Security Bulletins	Security Bulletin: Vulnerabilities in libxml2 affect IBM Integrated Management Module (IMM) for System x & BladeCenter	14 Apr 202314:32	–	ibm
IBM Security Bulletins	Security Bulletin: IBM Streams may be affected by XMLsoft Libxml2 vulnerabilities	16 Jun 201814:17	–	ibm
IBM Security Bulletins	Security Bulletin: Vulnerabilities in libxml2 affect IBM Integrated Management Module II (IMM2) for System x, Flex and BladeCenter systems (CVE-2015-8806 CVE-2016-3705 CVE-2016-4447 CVE-2016-4448 CVE-2016-4449)	14 Apr 202314:32	–	ibm

Source	Link
my	www.my.f5.com/manage/s/article/K04450715

# SPDX-FileCopyrightText: 2017 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

CPE = "cpe:/h:f5:big-ip";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.140193");
  script_cve_id("CVE-2015-8806", "CVE-2016-9244");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_version("2026-04-24T06:23:04+0000");

  script_name("F5 BIG-IP - libxml2 vulnerability CVE-2015-8806");

  script_xref(name:"URL", value:"https://my.f5.com/manage/s/article/K04450715");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");

  script_tag(name:"solution", value:"See the referenced vendor advisory for a solution.");

  script_tag(name:"summary", value:"dict.c in libxml2 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via an unexpected character immediately after the '<!DOCTYPE html' substring in a crafted HTML document.");

  script_tag(name:"impact", value:"This vulnerability allows disruption of service.");
  script_tag(name:"qod_type", value:"package");
  script_tag(name:"solution_type", value:"VendorFix");

  script_tag(name:"last_modification", value:"2026-04-24 06:23:04 +0000 (Fri, 24 Apr 2026)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2019-06-06 15:11:00 +0000 (Thu, 06 Jun 2019)");
  script_tag(name:"creation_date", value:"2017-03-17 10:24:10 +0100 (Fri, 17 Mar 2017)");
  script_category(ACT_GATHER_INFO);
  script_family("F5 Local Security Checks");
  script_copyright("Copyright (C) 2017 Greenbone AG");
  script_dependencies("gb_f5_big_ip_ssh_login_detect.nasl");
  script_mandatory_keys("f5/big_ip/version", "f5/big_ip/active_modules");
  exit(0);
}

include("f5.inc");
include("host_details.inc");
include("list_array_func.inc");
include("version_func.inc");

if (!version = get_app_version(cpe: CPE, service: "ssh-login"))
  exit(0);

check_f5["LTM"] = make_array("affected",   "12.0.0-12.1.1;11.4.0-11.6.1;11.2.1;",
                             "unaffected", "12.1.2;");

check_f5["AAM"] = make_array("affected",   "12.0.0-12.1.1;11.4.0-11.6.1;",
                             "unaffected", "12.1.2;");

check_f5["AFM"] = make_array("affected",   "12.0.0-12.1.1;11.4.0-11.6.1;",
                             "unaffected", "12.1.2;");

check_f5["AVR"] = make_array("affected",   "12.0.0-12.1.1;11.4.0-11.6.1;11.2.1;",
                             "unaffected", "12.1.2;");

check_f5["APM"] = make_array("affected",   "12.0.0-12.1.1;11.4.0-11.6.1;11.2.1;",
                             "unaffected", "12.1.2;");

check_f5["ASM"] = make_array("affected",   "12.0.0-12.1.1;11.4.0-11.6.1;11.2.1;",
                             "unaffected", "12.1.2;");

check_f5["LC"]  = make_array("affected",   "12.0.0-12.1.1;11.4.0-11.6.1;11.2.1;",
                             "unaffected", "12.1.2;");

check_f5["PEM"] = make_array("affected",   "12.0.0-12.1.1;11.4.0-11.6.1;",
                             "unaffected", "12.1.2;");

if (report = f5_is_vulnerable(ca: check_f5, version: version)) {
  security_message(port: 0, data: report);
  exit(0);
}

exit(99);

24 Apr 2026 00:00Current

6.6Medium risk

Vulners AI Score6.6

CVSS 25

CVSS 3.17.5

CVSS 37.5

EPSS0.74