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Total 39 CVE
CVE Vendors Products Updated CVSS v3.1
CVE-2022-25315 6 Debian, Fedoraproject, Libexpat Project and 3 more 12 Debian Linux, Fedora, Libexpat and 9 more 2025-05-05 9.8 Critical
In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames.
CVE-2022-25314 6 Debian, Fedoraproject, Libexpat Project and 3 more 8 Debian Linux, Fedora, Libexpat and 5 more 2025-05-05 7.5 High
In Expat (aka libexpat) before 2.4.5, there is an integer overflow in copyString.
CVE-2022-25236 5 Debian, Libexpat Project, Oracle and 2 more 11 Debian Linux, Libexpat, Http Server and 8 more 2025-05-05 9.8 Critical
xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters into namespace URIs.
CVE-2022-25235 6 Debian, Fedoraproject, Libexpat Project and 3 more 12 Debian Linux, Fedora, Libexpat and 9 more 2025-05-05 9.8 Critical
xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a UTF-8 character is valid in a certain context.
CVE-2022-23990 7 Debian, Fedoraproject, Libexpat Project and 4 more 8 Debian Linux, Fedora, Libexpat and 5 more 2025-05-05 7.5 High
Expat (aka libexpat) before 2.4.4 has an integer overflow in the doProlog function.
CVE-2022-23852 7 Debian, Libexpat Project, Netapp and 4 more 10 Debian Linux, Libexpat, Clustered Data Ontap and 7 more 2025-05-05 9.8 Critical
Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with a nonzero XML_CONTEXT_BYTES.
CVE-2022-22827 5 Debian, Libexpat Project, Redhat and 2 more 6 Debian Linux, Libexpat, Enterprise Linux and 3 more 2025-05-05 8.8 High
storeAtts in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVE-2022-22826 5 Debian, Libexpat Project, Redhat and 2 more 6 Debian Linux, Libexpat, Enterprise Linux and 3 more 2025-05-05 8.8 High
nextScaffoldPart in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVE-2022-22825 5 Debian, Libexpat Project, Redhat and 2 more 6 Debian Linux, Libexpat, Enterprise Linux and 3 more 2025-05-05 8.8 High
lookup in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVE-2022-22824 5 Debian, Libexpat Project, Redhat and 2 more 6 Debian Linux, Libexpat, Enterprise Linux and 3 more 2025-05-05 9.8 Critical
defineAttribute in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVE-2022-22823 5 Debian, Libexpat Project, Redhat and 2 more 6 Debian Linux, Libexpat, Enterprise Linux and 3 more 2025-05-05 9.8 Critical
build_model in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVE-2022-22822 5 Debian, Libexpat Project, Redhat and 2 more 6 Debian Linux, Libexpat, Enterprise Linux and 3 more 2025-05-05 9.8 Critical
addBinding in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
CVE-2021-46143 5 Libexpat Project, Netapp, Redhat and 2 more 10 Libexpat, Active Iq Unified Manager, Clustered Data Ontap and 7 more 2025-05-05 8.1 High
In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize.
CVE-2021-45960 6 Debian, Libexpat Project, Netapp and 3 more 10 Debian Linux, Libexpat, Active Iq Unified Manager and 7 more 2025-05-05 8.8 High
In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory).
CVE-2024-50602 2 Libexpat Project, Redhat 3 Libexpat, Enterprise Linux, Rhel Eus 2025-04-30 5.9 Medium
An issue was discovered in libexpat before 2.6.4. There is a crash within the XML_ResumeParser function because XML_StopParser can stop/suspend an unstarted parser.
CVE-2017-9233 3 Debian, Libexpat Project, Python 3 Debian Linux, Libexpat, Python 2025-04-20 7.5 High
XML External Entity vulnerability in libexpat 2.2.0 and earlier (Expat XML Parser Library) allows attackers to put the parser in an infinite loop using a malformed external entity definition from an external DTD.
CVE-2017-11742 2 Libexpat Project, Microsoft 2 Libexpat, Windows 2025-04-20 N/A
The writeRandomBytes_RtlGenRandom function in xmlparse.c in libexpat in Expat 2.2.1 and 2.2.2 on Windows allows local users to gain privileges via a Trojan horse ADVAPI32.DLL in the current working directory because of an untrusted search path, aka DLL hijacking.
CVE-2012-6702 4 Canonical, Debian, Google and 1 more 4 Ubuntu Linux, Debian Linux, Android and 1 more 2025-04-12 N/A
Expat, when used in a parser that has not called XML_SetHashSalt or passed it a seed of 0, makes it easier for context-dependent attackers to defeat cryptographic protection mechanisms via vectors involving use of the srand function.
CVE-2015-1283 9 Canonical, Debian, Google and 6 more 14 Ubuntu Linux, Debian Linux, Chrome and 11 more 2025-04-12 N/A
Multiple integer overflows in the XML_GetBuffer function in Expat through 2.1.0, as used in Google Chrome before 44.0.2403.89 and other products, allow remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via crafted XML data, a related issue to CVE-2015-2716.
CVE-2016-4472 4 Canonical, Libexpat Project, Mcafee and 1 more 4 Ubuntu Linux, Libexpat, Policy Auditor and 1 more 2025-04-12 8.1 High
The overflow protection in Expat is removed by compilers with certain optimization settings, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via crafted XML data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1283 and CVE-2015-2716.