CVE-2025-8732 (GCVE-0-2025-8732)

Vulnerability from cvelistv5 – Published: 2025-08-08 16:32 – Updated: 2025-08-08 17:12 Disputed
VLAI?
Title
libxml2 xmlcatalog xmlParseSGMLCatalog recursion
Summary
A vulnerability was found in libxml2 up to 2.14.5. It has been declared as problematic. This vulnerability affects the function xmlParseSGMLCatalog of the component xmlcatalog. The manipulation leads to uncontrolled recursion. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The code maintainer explains, that "[t]he issue can only be triggered with untrusted SGML catalogs and it makes absolutely no sense to use untrusted catalogs. I also doubt that anyone is still using SGML catalogs at all."
Severity ?
4.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:C
3.3 (Low)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:C
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a libxml2 Affected: 2.14.0
Affected: 2.14.1
Affected: 2.14.2
Affected: 2.14.3
Affected: 2.14.4
Affected: 2.14.5
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-8732",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-08-08T17:04:09.914830Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-08-08T17:12:15.735Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "modules": [
            "xmlcatalog"
          ],
          "product": "libxml2",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "2.14.0"
            },
            {
              "status": "affected",
              "version": "2.14.1"
            },
            {
              "status": "affected",
              "version": "2.14.2"
            },
            {
              "status": "affected",
              "version": "2.14.3"
            },
            {
              "status": "affected",
              "version": "2.14.4"
            },
            {
              "status": "affected",
              "version": "2.14.5"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability was found in libxml2 up to 2.14.5. It has been declared as problematic. This vulnerability affects the function xmlParseSGMLCatalog of the component xmlcatalog. The manipulation leads to uncontrolled recursion. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The code maintainer explains, that \"[t]he issue can only be triggered with untrusted SGML catalogs and it makes absolutely no sense to use untrusted catalogs. I also doubt that anyone is still using SGML catalogs at all.\""
        },
        {
          "lang": "de",
          "value": "In libxml2 bis 2.14.5 wurde eine Schwachstelle ausgemacht. Sie wurde als problematisch eingestuft. Dabei geht es um die Funktion xmlParseSGMLCatalog der Komponente xmlcatalog. Durch Manipulieren mit unbekannten Daten kann eine uncontrolled recursion-Schwachstelle ausgenutzt werden. Die Umsetzung des Angriffs hat dabei lokal zu erfolgen. Der Exploit steht zur \u00f6ffentlichen Verf\u00fcgung. Zur Zeit ist nicht genau klar, ob diese Schwachstelle in der besagten Form wirklich existiert."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:C",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:C",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 1.7,
            "vectorString": "AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:C",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-674",
              "description": "Uncontrolled Recursion",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-404",
              "description": "Denial of Service",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-08-08T16:32:06.990Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-319228 | libxml2 xmlcatalog xmlParseSGMLCatalog recursion",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/?id.319228"
        },
        {
          "name": "VDB-319228 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/?ctiid.319228"
        },
        {
          "name": "Submit #622285 | LibXML2  xmlcatalog  the newest master stack overflow",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/?submit.622285"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://gitlab.gnome.org/GNOME/libxml2/-/issues/958"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://gitlab.gnome.org/GNOME/libxml2/-/issues/958#note_2505853"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://drive.google.com/file/d/1woIeYVcSQB_NwfEhaVnX6MedpWJ_nqWl/view?usp=drive_link"
        }
      ],
      "tags": [
        "disputed"
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2025-08-08T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2025-08-08T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2025-08-08T09:55:15.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "libxml2 xmlcatalog xmlParseSGMLCatalog recursion"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2025-8732",
    "datePublished": "2025-08-08T16:32:06.990Z",
    "dateReserved": "2025-08-08T07:49:27.806Z",
    "dateUpdated": "2025-08-08T17:12:15.735Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-8732\",\"sourceIdentifier\":\"cna@vuldb.com\",\"published\":\"2025-08-08T17:15:30.583\",\"lastModified\":\"2025-08-08T20:30:18.180\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[{\"sourceIdentifier\":\"cna@vuldb.com\",\"tags\":[\"disputed\"]}],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability was found in libxml2 up to 2.14.5. It has been declared as problematic. This vulnerability affects the function xmlParseSGMLCatalog of the component xmlcatalog. The manipulation leads to uncontrolled recursion. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The code maintainer explains, that \\\"[t]he issue can only be triggered with untrusted SGML catalogs and it makes absolutely no sense to use untrusted catalogs. I also doubt that anyone is still using SGML catalogs at all.\\\"\"},{\"lang\":\"es\",\"value\":\"Se encontr\u00f3 una vulnerabilidad en libxml2 hasta la versi\u00f3n 2.14.5. Se ha declarado problem\u00e1tica. Esta vulnerabilidad afecta a la funci\u00f3n xmlParseSGMLCatalog del componente xmlcatalog. La manipulaci\u00f3n provoca recursi\u00f3n incontrolada. Es necesario atacar localmente. Se ha hecho p\u00fablico el exploit y puede que sea utilizado. La existencia real de esta vulnerabilidad a\u00fan se duda. El responsable del c\u00f3digo explica que \u00abel problema solo puede desencadenarse con cat\u00e1logos SGML no confiables y no tiene ning\u00fan sentido usarlos. Dudo tambi\u00e9n que alguien siga utilizando cat\u00e1logos SGML\u00bb.\"}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":4.8,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"NONE\",\"vulnIntegrityImpact\":\"NONE\",\"vulnAvailabilityImpact\":\"LOW\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"PROOF_OF_CONCEPT\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"cvssMetricV31\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L\",\"baseScore\":3.3,\"baseSeverity\":\"LOW\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":1.8,\"impactScore\":1.4}],\"cvssMetricV2\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:S/C:N/I:N/A:P\",\"baseScore\":1.7,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":3.1,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-404\"},{\"lang\":\"en\",\"value\":\"CWE-674\"}]}],\"references\":[{\"url\":\"https://drive.google.com/file/d/1woIeYVcSQB_NwfEhaVnX6MedpWJ_nqWl/view?usp=drive_link\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://gitlab.gnome.org/GNOME/libxml2/-/issues/958\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://gitlab.gnome.org/GNOME/libxml2/-/issues/958#note_2505853\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/?ctiid.319228\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/?id.319228\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/?submit.622285\",\"source\":\"cna@vuldb.com\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-8732\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-08-08T17:04:09.914830Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-08-08T17:12:12.366Z\"}}], \"cna\": {\"tags\": [\"disputed\"], \"title\": \"libxml2 xmlcatalog xmlParseSGMLCatalog recursion\", \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 4.8, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P\"}}, {\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 3.3, \"baseSeverity\": \"LOW\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:C\"}}, {\"cvssV3_0\": {\"version\": \"3.0\", \"baseScore\": 3.3, \"baseSeverity\": \"LOW\", \"vectorString\": \"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:C\"}}, {\"cvssV2_0\": {\"version\": \"2.0\", \"baseScore\": 1.7, \"vectorString\": \"AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:C\"}}], \"affected\": [{\"vendor\": \"n/a\", \"modules\": [\"xmlcatalog\"], \"product\": \"libxml2\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.14.0\"}, {\"status\": \"affected\", \"version\": \"2.14.1\"}, {\"status\": \"affected\", \"version\": \"2.14.2\"}, {\"status\": \"affected\", \"version\": \"2.14.3\"}, {\"status\": \"affected\", \"version\": \"2.14.4\"}, {\"status\": \"affected\", \"version\": \"2.14.5\"}]}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2025-08-08T00:00:00.000Z\", \"value\": \"Advisory disclosed\"}, {\"lang\": \"en\", \"time\": \"2025-08-08T02:00:00.000Z\", \"value\": \"VulDB entry created\"}, {\"lang\": \"en\", \"time\": \"2025-08-08T09:55:15.000Z\", \"value\": \"VulDB entry last update\"}], \"references\": [{\"url\": \"https://vuldb.com/?id.319228\", \"name\": \"VDB-319228 | libxml2 xmlcatalog xmlParseSGMLCatalog recursion\", \"tags\": [\"vdb-entry\", \"technical-description\"]}, {\"url\": \"https://vuldb.com/?ctiid.319228\", \"name\": \"VDB-319228 | CTI Indicators (IOB, IOC, IOA)\", \"tags\": [\"signature\", \"permissions-required\"]}, {\"url\": \"https://vuldb.com/?submit.622285\", \"name\": \"Submit #622285 | LibXML2  xmlcatalog  the newest master stack overflow\", \"tags\": [\"third-party-advisory\"]}, {\"url\": \"https://gitlab.gnome.org/GNOME/libxml2/-/issues/958\", \"tags\": [\"issue-tracking\"]}, {\"url\": \"https://gitlab.gnome.org/GNOME/libxml2/-/issues/958#note_2505853\", \"tags\": [\"issue-tracking\"]}, {\"url\": \"https://drive.google.com/file/d/1woIeYVcSQB_NwfEhaVnX6MedpWJ_nqWl/view?usp=drive_link\", \"tags\": [\"exploit\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability was found in libxml2 up to 2.14.5. It has been declared as problematic. This vulnerability affects the function xmlParseSGMLCatalog of the component xmlcatalog. The manipulation leads to uncontrolled recursion. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The code maintainer explains, that \\\"[t]he issue can only be triggered with untrusted SGML catalogs and it makes absolutely no sense to use untrusted catalogs. I also doubt that anyone is still using SGML catalogs at all.\\\"\"}, {\"lang\": \"de\", \"value\": \"In libxml2 bis 2.14.5 wurde eine Schwachstelle ausgemacht. Sie wurde als problematisch eingestuft. Dabei geht es um die Funktion xmlParseSGMLCatalog der Komponente xmlcatalog. Durch Manipulieren mit unbekannten Daten kann eine uncontrolled recursion-Schwachstelle ausgenutzt werden. Die Umsetzung des Angriffs hat dabei lokal zu erfolgen. Der Exploit steht zur \\u00f6ffentlichen Verf\\u00fcgung. Zur Zeit ist nicht genau klar, ob diese Schwachstelle in der besagten Form wirklich existiert.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-674\", \"description\": \"Uncontrolled Recursion\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-404\", \"description\": \"Denial of Service\"}]}], \"providerMetadata\": {\"orgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"shortName\": \"VulDB\", \"dateUpdated\": \"2025-08-08T16:32:06.990Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-8732\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-08-08T17:12:15.735Z\", \"dateReserved\": \"2025-08-08T07:49:27.806Z\", \"assignerOrgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"datePublished\": \"2025-08-08T16:32:06.990Z\", \"assignerShortName\": \"VulDB\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.