How severe is CVE-2013-2155?

CVE-2013-2155 has a CVSS 2.0 base score of 5.8, rated medium severity.

Is CVE-2013-2155 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-2155?

CVE-2013-2155 primarily affects Apache Xml Security For C++. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-2155?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2013-2155 published?

CVE-2013-2155 was published on 2013-08-20 and last updated on 2026-06-16.

CVE-2013-2155

CVE-2013-2155 is a medium-severity vulnerability in Apache Xml Security For C++ with a CVSS 2.0 base score of 5.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 2.0 base score 5.8)
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Apache Xml Security For C++
Published: 2013-08-20
Last modified: 2026-06-16

Description

Apache Santuario XML Security for C++ (aka xml-security-c) before 1.7.1 does not properly validate length values, which allows remote attackers to cause a denial of service or bypass the CVE-2009-0217 protection mechanism and spoof a signature via crafted length values to the (1) compareBase64StringToRaw, (2) DSIGAlgorithmHandlerDefault, or (3) DSIGAlgorithmHandlerDefault::verify functions.

Frequently asked questions

What is CVE-2013-2155?: Apache Santuario XML Security for C++ (aka xml-security-c) before 1.7.1 does not properly validate length values, which allows remote attackers to cause a denial of service or bypass the CVE-2009-0217 protection mechanism and spoof a signature via crafted length values to the (1) compareBase64StringToRaw, (2) DSIGAlgorithmHandlerDefault, or (3) DSIGAlgorithmHandlerDefault::verify functions.
How severe is CVE-2013-2155?: CVE-2013-2155 has a CVSS 2.0 base score of 5.8, rated medium severity.
Is CVE-2013-2155 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-2155?: CVE-2013-2155 primarily affects Apache Xml Security For C++. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-2155?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-2155 published?: CVE-2013-2155 was published on 2013-08-20 and last updated on 2026-06-16.

References

Affected products (13)

cpe:2.3:a:apache:xml_security_for_c\+\+:*:*:*:*:*:*:*:*
cpe:2.3:a:apache:xml_security_for_c\+\+:0.1.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:xml_security_for_c\+\+:0.2.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:xml_security_for_c\+\+:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:xml_security_for_c\+\+:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:xml_security_for_c\+\+:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:apache:xml_security_for_c\+\+:1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:xml_security_for_c\+\+:1.3.1:*:*:*:*:*:*:*
cpe:2.3:a:apache:xml_security_for_c\+\+:1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:xml_security_for_c\+\+:1.5.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:xml_security_for_c\+\+:1.5.1:*:*:*:*:*:*:*
cpe:2.3:a:apache:xml_security_for_c\+\+:1.6.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:xml_security_for_c\+\+:1.6.1:*:*:*:*:*:*:*

More vulnerabilities in Apache Xml Security For C++

CVE-2013-2210 — High (CVSS 7.5): Heap-based buffer overflow in the XML Signature Reference functionality in Apache Santuario XML Security for C++ (aka…
CVE-2013-2156 — High (CVSS 7.5): Heap-based buffer overflow in the Exclusive Canonicalization functionality (xsec/canon/XSECC14n20010315.cpp) in Apache…
CVE-2013-2154 — High (CVSS 7.5): Stack-based buffer overflow in the XML Signature Reference functionality (xsec/dsig/DSIGReference.cpp) in Apache…
CVE-2011-2516 — Medium (CVSS 5.0): Off-by-one error in the XML signature feature in Apache XML Security for C++ 1.6.0, as used in Shibboleth before 2.4.3…
CVE-2013-2153 — Medium (CVSS 4.3): The XML digital signature functionality (xsec/dsig/DSIGReference.cpp) in Apache Santuario XML Security for C++ (aka…

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