{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-6818", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2025-06-27T16:52:27.680Z", "datePublished": "2025-06-28T15:31:06.437Z", "dateUpdated": "2025-06-30T16:05:49.951Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2025-06-28T15:31:06.437Z"}, "title": "HDF5 H5Ochunk.c H5O__chunk_protect heap-based overflow", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-122", "lang": "en", "description": "Heap-based Buffer Overflow"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-119", "lang": "en", "description": "Memory Corruption"}]}], "affected": [{"vendor": "n/a", "product": "HDF5", "versions": [{"version": "1.14.6", "status": "affected"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability, which was classified as problematic, was found in HDF5 1.14.6. Affected is the function H5O__chunk_protect of the file /src/H5Ochunk.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used."}, {"lang": "de", "value": "Es wurde eine Schwachstelle in HDF5 1.14.6 gefunden. Sie wurde als problematisch eingestuft. Hiervon betroffen ist die Funktion H5O__chunk_protect der Datei /src/H5Ochunk.c. Durch Manipulieren mit unbekannten Daten kann eine heap-based buffer overflow-Schwachstelle ausgenutzt werden. Der Angriff hat dabei lokal zu erfolgen. Der Exploit steht zur \u00f6ffentlichen Verf\u00fcgung."}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 4.8, "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", "baseSeverity": "MEDIUM"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 3.3, "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:R", "baseSeverity": "LOW"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 3.3, "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:R", "baseSeverity": "LOW"}}, {"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:UR"}}], "timeline": [{"time": "2025-06-27T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2025-06-27T02:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2025-06-27T18:57:38.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "JJLeo (VulDB User)", "type": "reporter"}], "references": [{"url": "https://vuldb.com/?id.314256", "name": "VDB-314256 | HDF5 H5Ochunk.c H5O__chunk_protect heap-based overflow", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/?ctiid.314256", "name": "VDB-314256 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/?submit.602326", "name": "Submit #602326 | HDFGroup HDF5 hdf5 1.14.6 (commit 17c16b6) Heap-based Buffer Overflow", "tags": ["third-party-advisory"]}, {"url": "https://github.com/HDFGroup/hdf5/issues/5573", "tags": ["issue-tracking"]}, {"url": "https://github.com/user-attachments/files/20623382/hdf5_crash_5.txt", "tags": ["exploit"]}]}, "adp": [{"references": [{"url": "https://github.com/HDFGroup/hdf5/issues/5573", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-06-30T16:05:46.943499Z", "id": "CVE-2025-6818", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-06-30T16:05:49.951Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-6818", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-06-30T16:05:46.943499Z"}}}], "references": [{"url": "https://github.com/HDFGroup/hdf5/issues/5573", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-06-30T16:05:42.520Z"}}], "cna": {"title": "HDF5 H5Ochunk.c H5O__chunk_protect heap-based overflow", "credits": [{"lang": "en", "type": "reporter", "value": "JJLeo (VulDB User)"}], "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:R"}}, {"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:R"}}, {"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:UR"}}], "affected": [{"vendor": "n/a", "product": "HDF5", "versions": [{"status": "affected", "version": "1.14.6"}]}], "timeline": [{"lang": "en", "time": "2025-06-27T00:00:00.000Z", "value": "Advisory disclosed"}, {"lang": "en", "time": "2025-06-27T02:00:00.000Z", "value": "VulDB entry created"}, {"lang": "en", "time": "2025-06-27T18:57:38.000Z", "value": "VulDB entry last update"}], "references": [{"url": "https://vuldb.com/?id.314256", "name": "VDB-314256 | HDF5 H5Ochunk.c H5O__chunk_protect heap-based overflow", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/?ctiid.314256", "name": "VDB-314256 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/?submit.602326", "name": "Submit #602326 | HDFGroup HDF5 hdf5 1.14.6 (commit 17c16b6) Heap-based Buffer Overflow", "tags": ["third-party-advisory"]}, {"url": "https://github.com/HDFGroup/hdf5/issues/5573", "tags": ["issue-tracking"]}, {"url": "https://github.com/user-attachments/files/20623382/hdf5_crash_5.txt", "tags": ["exploit"]}], "descriptions": [{"lang": "en", "value": "A vulnerability, which was classified as problematic, was found in HDF5 1.14.6. Affected is the function H5O__chunk_protect of the file /src/H5Ochunk.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used."}, {"lang": "de", "value": "Es wurde eine Schwachstelle in HDF5 1.14.6 gefunden. Sie wurde als problematisch eingestuft. Hiervon betroffen ist die Funktion H5O__chunk_protect der Datei /src/H5Ochunk.c. Durch Manipulieren mit unbekannten Daten kann eine heap-based buffer overflow-Schwachstelle ausgenutzt werden. Der Angriff hat dabei lokal zu erfolgen. Der Exploit steht zur \u00f6ffentlichen Verf\u00fcgung."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-122", "description": "Heap-based Buffer Overflow"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-119", "description": "Memory Corruption"}]}], "providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2025-06-28T15:31:06.437Z"}}}, "cveMetadata": {"cveId": "CVE-2025-6818", "state": "PUBLISHED", "dateUpdated": "2025-06-30T16:05:49.951Z", "dateReserved": "2025-06-27T16:52:27.680Z", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "datePublished": "2025-06-28T15:31:06.437Z", "assignerShortName": "VulDB"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:hdfgroup:hdf5:1.14.6:*:*:*:*:*:*:*", "matchCriteriaId": "914439E4-D5A7-444C-A1C4-051519EFF7FA", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability, which was classified as problematic, was found in HDF5 1.14.6. Affected is the function H5O__chunk_protect of the file /src/H5Ochunk.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used."}, {"lang": "es", "value": "Se encontr\u00f3 una vulnerabilidad clasificada como problem\u00e1tica en HDF5 1.14.6. La funci\u00f3n H5O__chunk_protect del archivo /src/H5Ochunk.c est\u00e1 afectada. La manipulaci\u00f3n provoca un desbordamiento del b\u00fafer en el mont\u00f3n. Un ataque debe abordarse localmente. Se ha hecho p\u00fablico el exploit y puede que sea utilizado."}], "id": "CVE-2025-6818", "lastModified": "2026-04-29T01:00:01.613", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 1.7, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:S/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 3.1, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 3.3, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 1.4, "source": "cna@vuldb.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 1.9, "baseSeverity": "LOW", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "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", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}]}, "published": "2025-06-28T16:15:23.977", "references": [{"source": "cna@vuldb.com", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "url": "https://github.com/HDFGroup/hdf5/issues/5573"}, {"source": "cna@vuldb.com", "tags": ["Exploit"], "url": "https://github.com/user-attachments/files/20623382/hdf5_crash_5.txt"}, {"source": "cna@vuldb.com", "tags": ["Permissions Required"], "url": "https://vuldb.com/?ctiid.314256"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?id.314256"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?submit.602326"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "url": "https://github.com/HDFGroup/hdf5/issues/5573"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}, {"lang": "en", "value": "CWE-122"}], "source": "cna@vuldb.com", "type": "Secondary"}]}

{"bugzilla": {"description": "hdf5: HDF5 Heap Overflow", "id": "2375339", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2375339"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "(CWE-119|CWE-122)", "details": ["A vulnerability, which was classified as problematic, was found in HDF5 1.14.6. Affected is the function H5O__chunk_protect of the file /src/H5Ochunk.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used.", "A flaw was found in hdf5. The H5O__chunk_protect function in /src/H5Ochunk.c contains a heap-based buffer overflow resulting from improper memory handling. This flaw allows local attackers to trigger the overflow by manipulating a crafted file. This condition can lead to a denial of service."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2025-6818", "package_state": [{"cpe": "cpe:/a:redhat:enterprise_linux_ai:1", "fix_state": "Fix deferred", "package_name": "hdf5", "product_name": "Red Hat Enterprise Linux AI (RHEL AI)"}], "public_date": "2025-06-28T15:31:06Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-6818\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-6818\nhttps://github.com/HDFGroup/hdf5/issues/5573\nhttps://github.com/user-attachments/files/20623382/hdf5_crash_5.txt\nhttps://vuldb.com/?ctiid.314256\nhttps://vuldb.com/?id.314256\nhttps://vuldb.com/?submit.602326"], "threat_severity": "Low"}

{}