本ページは xmlsoft libxml2 に影響する公開済み CVE（NVD の CPE 経由で関連付け）を列挙します。各行に深刻度指標・概要・公開日が含まれます。
| CVE | 概要 | ソース | CVSS 最大値 | EPSS（%） | 公開 | 更新 |
|---|---|---|---|---|---|---|
| CVE-2018-14404 | 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. | [email protected] | 6.5 | 3.68% | 2018-07-19 | 2026-06-16 |
| CVE-2017-18258 | 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. | [email protected] | 6.5 | 2.71% | 2018-04-08 | 2026-06-16 |
| CVE-2018-9251 | The xz_decomp function in xzlib.c in 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. | [email protected] | 5.3 | 2.44% | 2018-04-03 | 2026-06-16 |
| CVE-2017-7376 | Buffer overflow in libxml2 allows remote attackers to execute arbitrary code by leveraging an incorrect limit for port values when handling redirects. | [email protected] | 9.8 | 23.69% | 2018-02-19 | 2026-06-16 |
| CVE-2017-7375 | 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). | [email protected] | 9.8 | 2.64% | 2018-02-19 | 2026-06-16 |
| CVE-2017-5130 | An integer overflow in xmlmemory.c in libxml2 before 2.9.5, as used in Google Chrome prior to 62.0.3202.62 and other products, allowed a remote attacker to potentially exploit heap corruption via a crafted XML file. | [email protected] | 8.8 | 2.98% | 2018-02-07 | 2026-06-16 |
| CVE-2017-16932 | parser.c in libxml2 before 2.9.5 does not prevent infinite recursion in parameter entities. | [email protected] | 7.5 | 5.93% | 2017-11-23 | 2026-06-16 |
| CVE-2017-16931 | 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. | [email protected] | 9.8 | 4.45% | 2017-11-23 | 2026-06-16 |
| CVE-2017-9050 | 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. | [email protected] | 7.5 | 4.63% | 2017-05-18 | 2026-06-16 |
| CVE-2017-9049 | 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. | [email protected] | 7.5 | 4.63% | 2017-05-18 | 2026-06-16 |
| CVE-2017-9048 | 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. | [email protected] | 7.5 | 4.89% | 2017-05-18 | 2026-06-16 |
| CVE-2017-9047 | 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 actu | [email protected] | 7.5 | 3.19% | 2017-05-18 | 2026-06-16 |
| CVE-2017-8872 | The htmlParseTryOrFinish function in HTMLparser.c in libxml2 2.9.4 allows attackers to cause a denial of service (buffer over-read) or information disclosure. | [email protected] | 9.1 | 2.31% | 2017-05-10 | 2026-06-16 |
| CVE-2017-5969 | libxml2 2.9.4, when used in recover mode, allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted XML document. NOTE: The maintainer states "I would disagree of a CVE with the Recover parsing option which should only be used for manual recovery at least for XML parser. | [email protected] | 4.7 | 2.63% | 2017-04-11 | 2026-06-16 |
| CVE-2016-4483 | The xmlBufAttrSerializeTxtContent function in xmlsave.c in libxml2 allows context-dependent attackers to cause a denial of service (out-of-bounds read and application crash) via a non-UTF-8 attribute value, related to serialization. NOTE: this vulnerability may be a duplicate of CVE-2016-3627. | [email protected] | 7.5 | 6.17% | 2017-04-11 | 2026-06-16 |
| CVE-2016-9318 | 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. | [email protected] | 5.5 | 2.94% | 2016-11-15 | 2026-06-16 |
| CVE-2016-4658 | 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. | [email protected] | 9.8 | 8.63% | 2016-09-25 | 2026-06-16 |
| CVE-2016-5131 | 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. | [email protected] | 8.8 | 2.27% | 2016-07-23 | 2026-06-16 |
| CVE-2016-4449 | XML external entity (XXE) vulnerability in the xmlStringLenDecodeEntities function in parser.c in libxml2 before 2.9.4, when not in validating mode, allows context-dependent attackers to read arbitrary files or cause a denial of service (resource consumption) via unspecified vectors. | [email protected] | 7.1 | 1.67% | 2016-06-09 | 2026-06-16 |
| CVE-2016-4448 | Format string vulnerability in libxml2 before 2.9.4 allows attackers to have unspecified impact via format string specifiers in unknown vectors. | [email protected] | 9.8 | 7.04% | 2016-06-09 | 2026-06-16 |