{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-93543", "assignerOrgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb", "state": "PUBLISHED", "assignerShortName": "suse", "dateReserved": "2026-09-18T09:08:10.295Z", "datePublished": "2026-09-24T16:09:51.221Z", "dateUpdated": "2026-09-24T17:17:07.094Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb", "shortName": "suse", "dateUpdated": "2026-09-24T16:09:51.221Z"}, "title": "Out-of-bounds read in libXi's XI2 class parser", "datePublic": "2026-09-24T16:06:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-125", "description": "CWE-125 Out-of-bounds read", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-540", "descriptions": [{"lang": "en", "value": "CAPEC-540 Overread Buffers"}]}], "affected": [{"vendor": "x.org", "product": "libXi", "packageName": "libXi", "repo": "https://gitlab.freedesktop.org/xorg/lib/libxi", "versions": [{"status": "affected", "version": "0", "lessThan": "1.8.4", "versionType": "rpm"}], "defaultStatus": "unaffected"}], "cpeApplicability": [{"operator": "OR", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:x.org:libxi:*:*:*:*:*:*:*:*", "versionStartIncluding": "0", "versionEndExcluding": "1.8.4"}]}]}], "descriptions": [{"lang": "en", "value": "An out-of-bounds read in libXi's XI2 class parser in libXi before 1.8.4 could be used by malicious X servers to crash an attached X client.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>An out-of-bounds read in libXi's XI2 class parser in libXi before 1.8.4 could be used by malicious X servers to crash an attached X client.</p>"}]}], "references": [{"url": "https://gitlab.freedesktop.org/xorg/lib/libxi/-/merge_requests/23/diffs?commit_id=e2089ab748828273f916bbffd4e65b506aa50fdc", "tags": ["patch"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 7.4, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H"}}], "credits": [{"lang": "en", "value": "AISLE in partnership with Red Hat", "type": "finder"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-24T17:16:58.657195Z", "id": "CVE-2026-93543", "options": [{"Exploitation": "none"}, {"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": "2026-09-24T17:17:07.094Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-93543", "assignerOrgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb", "state": "PUBLISHED", "assignerShortName": "suse", "dateReserved": "2026-09-18T09:08:10.295Z", "datePublished": "2026-09-24T16:09:51.221Z", "dateUpdated": "2026-09-24T17:17:07.094Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb", "shortName": "suse", "dateUpdated": "2026-09-24T16:09:51.221Z"}, "title": "Out-of-bounds read in libXi's XI2 class parser", "datePublic": "2026-09-24T16:06:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-125", "description": "CWE-125 Out-of-bounds read", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-540", "descriptions": [{"lang": "en", "value": "CAPEC-540 Overread Buffers"}]}], "affected": [{"vendor": "x.org", "product": "libXi", "packageName": "libXi", "repo": "https://gitlab.freedesktop.org/xorg/lib/libxi", "versions": [{"status": "affected", "version": "0", "lessThan": "1.8.4", "versionType": "rpm"}], "defaultStatus": "unaffected"}], "cpeApplicability": [{"operator": "OR", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:x.org:libxi:*:*:*:*:*:*:*:*", "versionStartIncluding": "0", "versionEndExcluding": "1.8.4"}]}]}], "descriptions": [{"lang": "en", "value": "An out-of-bounds read in libXi's XI2 class parser in libXi before 1.8.4 could be used by malicious X servers to crash an attached X client.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>An out-of-bounds read in libXi's XI2 class parser in libXi before 1.8.4 could be used by malicious X servers to crash an attached X client.</p>"}]}], "references": [{"url": "https://gitlab.freedesktop.org/xorg/lib/libxi/-/merge_requests/23/diffs?commit_id=e2089ab748828273f916bbffd4e65b506aa50fdc", "tags": ["patch"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 7.4, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H"}}], "credits": [{"lang": "en", "value": "AISLE in partnership with Red Hat", "type": "finder"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-93543", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-24T17:16:58.657195Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-24T17:17:03.006Z"}}]}}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageName": "libXi", "product": "libXi", "repo": "https://gitlab.freedesktop.org/xorg/lib/libxi", "vendor": "x.org", "versions": [{"lessThan": "1.8.4", "status": "affected", "version": "0", "versionType": "rpm"}]}], "source": "meissner@suse.de"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An out-of-bounds read in libXi's XI2 class parser in libXi before 1.8.4 could be used by malicious X servers to crash an attached X client."}], "id": "CVE-2026-93543", "lastModified": "2026-09-24T21:00:46.893", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 4.0, "source": "meissner@suse.de", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-93543", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-24T17:16:58.657195Z", "version": "2.0.3"}}]}, "published": "2026-09-24T17:17:10.307", "references": [{"source": "meissner@suse.de", "url": "https://gitlab.freedesktop.org/xorg/lib/libxi/-/merge_requests/23/diffs?commit_id=e2089ab748828273f916bbffd4e65b506aa50fdc"}], "sourceIdentifier": "meissner@suse.de", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "meissner@suse.de", "type": "Secondary"}]}

{"bugzilla": {"description": "libXi: libXi: Denial of Service via out-of-bounds read in XI2 class parser", "id": "2540529", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2540529"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["A flaw was found in libXi. An out-of-bounds read vulnerability in the X Input 2 (XI2) class parser allows a malicious X server to cause a Denial of Service (DoS) by crashing connected client applications. When an application receives and processes specially crafted input from the server, insufficient boundary checking causes the client to read beyond memory limits and terminate unexpectedly."], "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-2026-93543", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "libXi", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "libXi", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "libXi", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "libXi", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "libXi", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "libXi", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-09-24T16:09:51Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-93543\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-93543\nhttps://gitlab.freedesktop.org/xorg/lib/libxi/-/merge_requests/23/diffs?commit_id=e2089ab748828273f916bbffd4e65b506aa50fdc"], "threat_severity": "Moderate"}