{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-88807", "assignerOrgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb", "state": "PUBLISHED", "assignerShortName": "suse", "dateReserved": "2026-09-10T08:35:07.010Z", "datePublished": "2026-09-21T13:49:21.327Z", "dateUpdated": "2026-09-22T03:55:46.845Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb", "shortName": "suse", "dateUpdated": "2026-09-21T13:49:21.327Z" }, "title": "libXrender RenderQueryPictFormats Reply Heap-based Buffer Overflow", "datePublic": "2026-09-18T13:42:00.000Z", "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-122", "description": "CWE-122 Heap-based buffer overflow", "type": "CWE" } ] } ], "impacts": [ { "capecId": "CAPEC-242", "descriptions": [ { "lang": "en", "value": "CAPEC-242 Code Injection" } ] } ], "affected": [ { "vendor": "X.org", "product": "libXrender", "packageName": "libXrender", "repo": "https://gitlab.freedesktop.org/xorg/lib/libxrender", "versions": [ { "status": "affected", "version": "0", "lessThan": "0.9.13", "versionType": "rpmver" } ], "defaultStatus": "unaffected" } ], "cpeApplicability": [ { "operator": "OR", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:x.org:libxrender:*:*:*:*:*:*:*:*", "versionStartIncluding": "0", "versionEndExcluding": "0.9.13" } ] } ] } ], "descriptions": [ { "lang": "en", "value": "A heap overflow in libXrender before 0.9.13 in RenderQueryPictFormats could be used by malicious X servers to inject code into attached X clients.", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "A heap overflow in libXrender before 0.9.13 in RenderQueryPictFormats could be used by malicious X servers to inject code into attached X clients." } ] } ], "references": [ { "url": "https://gitlab.freedesktop.org/xorg/lib/libxrender/-/merge_requests/19", "tags": [ "patch" ] } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV4_0": { "attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "ACTIVE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 8.9, "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H" } } ], "credits": [ { "lang": "en", "value": "Adam Bedard working with TrendAI Zero Day Initiative", "type": "finder" }, { "lang": "en", "value": "Claude:claude-opus-4-6", "type": "tool" } ], "source": { "discovery": "EXTERNAL" }, "x_generator": { "engine": "Vulnogram 1.0.5" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-09-21T00:00:00+00:00", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-88807" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-22T03:55:46.845Z" } } ] } }