Vulnerabilities (CVE)

Filtered by vendor Xmlsoft Subscribe
Total 144 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2020-24977 6 Debian, Fedoraproject, Netapp and 3 more 19 Debian Linux, Fedora, Active Iq Unified Manager and 16 more 2026-10-14 6.4 MEDIUM 6.5 MEDIUM
GNOME project libxml2 v2.9.10 has a global buffer over-read vulnerability in xmlEncodeEntitiesInternal at libxml2/entities.c. The issue has been fixed in commit 50f06b3e.
CVE-2020-7595 7 Canonical, Debian, Fedoraproject and 4 more 32 Ubuntu Linux, Debian Linux, Fedora and 29 more 2026-10-14 5.0 MEDIUM 7.5 HIGH
xmlStringLenDecodeEntities in parser.c in libxml2 2.9.10 has an infinite loop in a certain end-of-file situation.
CVE-2019-20388 6 Debian, Fedoraproject, Netapp and 3 more 31 Debian Linux, Fedora, Cloud Backup and 28 more 2026-10-14 5.0 MEDIUM 7.5 HIGH
xmlSchemaPreRun in xmlschemas.c in libxml2 2.9.10 allows an xmlSchemaValidateStream memory leak.
CVE-2019-19956 7 Canonical, Debian, Fedoraproject and 4 more 12 Ubuntu Linux, Debian Linux, Fedora and 9 more 2026-10-14 5.0 MEDIUM 7.5 HIGH
xmlParseBalancedChunkMemoryRecover in parser.c in libxml2 before 2.9.10 has a memory leak related to newDoc->oldNs.
CVE-2018-14567 3 Canonical, Debian, Xmlsoft 3 Ubuntu Linux, Debian Linux, Libxml2 2026-10-14 4.3 MEDIUM 6.5 MEDIUM
libxml2 2.9.8, if --with-lzma is used, allows remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint, a different vulnerability than CVE-2015-8035 and CVE-2018-9251.
CVE-2018-14404 3 Canonical, Debian, Xmlsoft 3 Ubuntu Linux, Debian Linux, Libxml2 2026-10-14 5.0 MEDIUM 6.5 MEDIUM
A NULL pointer dereference vulnerability exists in the xpath.c:xmlXPathCompOpEval() function of libxml2 through 2.9.8 when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case. Applications processing untrusted XSL format inputs with the use of the libxml2 library may be vulnerable to a denial of service attack due to a crash of the application.
CVE-2017-9050 1 Xmlsoft 1 Libxml2 2026-10-14 5.0 MEDIUM 7.5 HIGH
libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictAddString function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for CVE-2016-1839.
CVE-2017-9049 1 Xmlsoft 1 Libxml2 2026-10-14 5.0 MEDIUM 7.5 HIGH
libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictComputeFastKey function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for libxml2 Bug 759398.
CVE-2017-9048 1 Xmlsoft 1 Libxml2 2026-10-14 5.0 MEDIUM 7.5 HIGH
libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a stack-based buffer overflow. The function xmlSnprintfElementContent in valid.c is supposed to recursively dump the element content definition into a char buffer 'buf' of size 'size'. At the end of the routine, the function may strcat two more characters without checking whether the current strlen(buf) + 2 < size. This vulnerability causes programs that use libxml2, such as PHP, to crash.
CVE-2017-9047 1 Xmlsoft 1 Libxml2 2026-10-14 5.0 MEDIUM 7.5 HIGH
A buffer overflow was discovered in libxml2 20904-GITv2.9.4-16-g0741801. The function xmlSnprintfElementContent in valid.c is supposed to recursively dump the element content definition into a char buffer 'buf' of size 'size'. The variable len is assigned strlen(buf). If the content->type is XML_ELEMENT_CONTENT_ELEMENT, then (i) the content->prefix is appended to buf (if it actually fits) whereupon (ii) content->name is written to the buffer. However, the check for whether the content->name actually fits also uses 'len' rather than the updated buffer length strlen(buf). This allows us to write about "size" many bytes beyond the allocated memory. This vulnerability causes programs that use libxml2, such as PHP, to crash.
CVE-2017-7376 3 Debian, Google, Xmlsoft 3 Debian Linux, Android, Libxml2 2026-10-14 10.0 HIGH 9.8 CRITICAL
Buffer overflow in libxml2 allows remote attackers to execute arbitrary code by leveraging an incorrect limit for port values when handling redirects.
CVE-2017-7375 3 Debian, Google, Xmlsoft 3 Debian Linux, Android, Libxml2 2026-10-14 7.5 HIGH 9.8 CRITICAL
A flaw in libxml2 allows remote XML entity inclusion with default parser flags (i.e., when the caller did not request entity substitution, DTD validation, external DTD subset loading, or default DTD attributes). Depending on the context, this may expose a higher-risk attack surface in libxml2 not usually reachable with default parser flags, and expose content from local files, HTTP, or FTP servers (which might be otherwise unreachable).
CVE-2017-18258 1 Xmlsoft 1 Libxml2 2026-10-14 4.3 MEDIUM 6.5 MEDIUM
The xz_head function in xzlib.c in libxml2 before 2.9.6 allows remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict memory usage to what is required for a legitimate file.
CVE-2017-16932 1 Xmlsoft 1 Libxml2 2026-10-14 5.0 MEDIUM 7.5 HIGH
parser.c in libxml2 before 2.9.5 does not prevent infinite recursion in parameter entities.
CVE-2017-16931 1 Xmlsoft 1 Libxml2 2026-10-14 7.5 HIGH 9.8 CRITICAL
parser.c in libxml2 before 2.9.5 mishandles parameter-entity references because the NEXTL macro calls the xmlParserHandlePEReference function in the case of a '%' character in a DTD name.
CVE-2016-9318 3 Canonical, Xmlsec Project, Xmlsoft 3 Ubuntu Linux, Xmlsec, Libxml2 2026-10-14 4.3 MEDIUM 5.5 MEDIUM
libxml2 2.9.4 and earlier, as used in XMLSec 1.2.23 and earlier and other products, does not offer a flag directly indicating that the current document may be read but other files may not be opened, which makes it easier for remote attackers to conduct XML External Entity (XXE) attacks via a crafted document.
CVE-2016-5131 8 Apple, Canonical, Debian and 5 more 14 Iphone Os, Mac Os X, Tvos and 11 more 2026-10-14 6.8 MEDIUM 8.8 HIGH
Use-after-free vulnerability in libxml2 through 2.9.4, as used in Google Chrome before 52.0.2743.82, allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to the XPointer range-to function.
CVE-2016-4658 2 Apple, Xmlsoft 5 Iphone Os, Mac Os X, Tvos and 2 more 2026-10-14 10.0 HIGH 9.8 CRITICAL
xpointer.c in libxml2 before 2.9.5 (as used in Apple iOS before 10, OS X before 10.12, tvOS before 10, and watchOS before 3, and other products) does not forbid namespace nodes in XPointer ranges, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and memory corruption) via a crafted XML document.
CVE-2016-3709 1 Xmlsoft 1 Libxml2 2026-10-14 N/A 6.1 MEDIUM
Possible cross-site scripting vulnerability in libxml after commit 960f0e2.
CVE-2025-6021 2 Redhat, Xmlsoft 20 Enterprise Linux, Enterprise Linux Eus, Enterprise Linux For Arm 64 and 17 more 2026-10-12 N/A 7.5 HIGH
A flaw was found in libxml2's xmlBuildQName function, where integer overflows in buffer size calculations can lead to a stack-based buffer overflow. This issue can result in memory corruption or a denial of service when processing crafted input.