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{
"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": [
{
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"negate": false,
"cpeMatch": [
{
"vulnerable": true,
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"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"
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],
"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"
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"adp": [
{
"metrics": [
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"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"
}
}
]
}
}