CVE-2013-0340

mediumpriority · track · 34EPSS 0.194 · 97 %ileDERUUS
grimoire priorityP1 · Urgent
Exploitable?
—
no known exploitation
Likely / severe?
19.4% (97th) EPSS
CVSS 6.8 · medium
Is it mine?
71 products
Check your exposure
Who says so?
8 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

expat before version 2.4.0 does not properly handle entities expansion unless an application developer uses the XML_SetEntityDeclHandler function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, aka an XML External Entity (XXE) issue. NOTE: it could be argued that because expat already provides the ability to disable external entity expansion, the responsibility for resolving this issue lies with application developers; according to this argument, this entry should be REJECTed, and each affected application would need its own CVE.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • Fixedexpat-0:2.4.9-1.el9_1.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-0:2.4.9-1.el9_1.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-0:2.4.9-1.el9_1.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-0:2.4.9-1.el9_1.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-0:2.4.9-1.el9_1.src as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-0:2.4.9-1.el9_1.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-debuginfo-0:2.4.9-1.el9_1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-debuginfo-0:2.4.9-1.el9_1.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-debuginfo-0:2.4.9-1.el9_1.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-debuginfo-0:2.4.9-1.el9_1.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-debuginfo-0:2.4.9-1.el9_1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-debuginfo-0:2.4.9-1.el9_1.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-debuginfo-0:2.4.9-1.el9_1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-debuginfo-0:2.4.9-1.el9_1.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-debuginfo-0:2.4.9-1.el9_1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-debuginfo-0:2.4.9-1.el9_1.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-debugsource-0:2.4.9-1.el9_1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-debugsource-0:2.4.9-1.el9_1.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-debugsource-0:2.4.9-1.el9_1.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-debugsource-0:2.4.9-1.el9_1.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-debugsource-0:2.4.9-1.el9_1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-debugsource-0:2.4.9-1.el9_1.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-debugsource-0:2.4.9-1.el9_1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-debugsource-0:2.4.9-1.el9_1.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-debugsource-0:2.4.9-1.el9_1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-debugsource-0:2.4.9-1.el9_1.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-devel-0:2.4.9-1.el9_1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-devel-0:2.4.9-1.el9_1.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-devel-0:2.4.9-1.el9_1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-devel-0:2.4.9-1.el9_1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • Fixedexpat-devel-0:2.4.9-1.el9_1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)redhat_csaf

    Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHBA-2022:8290
  • FixedSIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)siemens_psirt

    Update to V3.1.5 or later version

    https://support.industry.siemens.com/cs/ww/en/view/109478459/
  • FixedSIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)siemens_psirt

    Update to V3.1.5 or later version

    https://support.industry.siemens.com/cs/ww/en/view/109478459/
  • FixedSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)siemens_psirt

    Update to V3.1.5 or later version

    https://support.industry.siemens.com/cs/ww/en/view/109478459/
  • FixedSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)siemens_psirt

    Update to V3.1.5 or later version

    https://support.industry.siemens.com/cs/ww/en/view/109478459/
  • FixedSIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)siemens_psirt

    Update to V3.1.5 or later version

    https://support.industry.siemens.com/cs/ww/en/view/109478459/
  • FixedSIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)cisa_csaf_ot

    Update to V3.1.5 or later version

    https://support.industry.siemens.com/cs/ww/en/view/109478459/
  • FixedSIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)cisa_csaf_ot

    Update to V3.1.5 or later version

    https://support.industry.siemens.com/cs/ww/en/view/109478459/
  • FixedSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)cisa_csaf_ot

    Update to V3.1.5 or later version

    https://support.industry.siemens.com/cs/ww/en/view/109478459/
  • FixedSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)cisa_csaf_ot

    Update to V3.1.5 or later version

    https://support.industry.siemens.com/cs/ww/en/view/109478459/
  • FixedSIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)cisa_csaf_ot

    Update to V3.1.5 or later version

    https://support.industry.siemens.com/cs/ww/en/view/109478459/
  • MitigationSIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)cisa_csaf_ot

    Only build and run applications from trusted sources.

  • MitigationSIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)cisa_csaf_ot

    Only build and run applications from trusted sources.

  • MitigationSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)cisa_csaf_ot

    Only build and run applications from trusted sources.

  • MitigationSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)cisa_csaf_ot

    Only build and run applications from trusted sources.

  • MitigationSIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)cisa_csaf_ot

    Only build and run applications from trusted sources.

02

cvss

Technical severity, 0–10. One row per scoring source.

9.1
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 4.3–9.1

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4
v2.05.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:P/E:Usecondary · CVSS-BT (t0sche)
v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:N/A:Psecondary · Red Hat Product Security US
v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Hsecondary · CISA US
v3.15.6mediumAV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:Lsecondary · FSTEC (BDU) RU
v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Hsecondary · Siemens ProductCERT DE
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-611USprimaryCWE-611USCWE-611USCWE-611US
05

affected products (71)

Products and version ranges known to be affected.

showing 20 of 71
06

advisories (6)

Vendor and ecosystem advisories describing this.

  • RHBA-2022:8290Red Hat Bug Fix Advisory: expat bug fix and enhancement update2022-11-15csaf · redhat_csafUS

    An update for expat is now available for Red Hat Enterprise Linux 9.

  • SSA-398330SSA-398330: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.52023-12-12csaf · siemens_psirtDE

    Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the firmware version >= V3.1.0 and < V3.1.5 for the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP (incl. SIPLUS variant). These GNU/Linux vulnerabilities have been externally identified. Siemens has released new versions for the affected products and recommends to update to the latest versions. SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.5 are no longer maintained and there won't be any update to the CVE list anymore. Please update to the latest version. Note: This SSA advises vulnerabilities for firmware version V3.1 only; for versions < V3.1 refer to Siemens Security Bulletin SSB-439005 (https://cert-portal.siemens.com/productcert/html/ssb-439005.html).

  • WID-SEC-W-2022-2399IBM Notes: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2019-06-16csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in IBM Notes und IBM Domino ausnutzen, um einen Denial of Service Angriff durchzuführen.

  • WID-SEC-W-2025-1459Dell Data Protection Advisor: Mehrere SchwachstellenDeutsch2025-07-03csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Dell Data Protection Advisor ausnutzen, um beliebigen Programmcode auszuführen, um einen Denial of Service Angriff durchzuführen, und um weitere nicht näher spezifizierte Angriffe durchzuführen.

  • ICSA-23-348-10Siemens SIMATIC S7-15002023-12-12icsa · cisa_csaf_otUS

    Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the firmware version >= V3.1.0 and < V3.1.5 for the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP (incl. SIPLUS variant). These GNU/Linux vulnerabilities have been externally identified. Siemens has released new versions for the affected products and recommends to update to the latest versions. Note: This SSA advises vulnerabilities for firmware version V3.1 only; for versions < V3.1 refer to Siemens Security Bulletin SSB-439005 ( https://cert-portal.siemens.com/productcert/html/ssb-439005.html).

  • PSF-2014-1CVE-2013-0340 Billion Laughs fixed in Expat 2.4.02014-01-21vendor · osvUS

    expat 2.1.0 and earlier does not properly handle entities expansion unless an application developer uses the XML_SetEntityDeclHandler function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, aka an XML External Entity (XXE) issue. NOTE: it could be argued that because expat already provides the ability to disable external entity expansion, the responsibility for resolving this issue lies with application developers; according to this argument, this entry should be REJECTed, and each affected application would need its own CVE.

07

also known as (4)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundcisa_csaf_otredhat_csafsiemens_psirtosvNVDCVE.orgMITRE
published 2014-01-21modified 2026-10-14
10

references (90)

External citations — patches, advisories, analysis.

scry

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