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vuln-cve/data/2026/19xxx/CVE-2026-19499.json
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"cveId": "CVE-2026-19499",
"assignerOrgId": "3ff69d7a-14f2-4f67-a097-88dee7810d18",
"state": "PUBLISHED",
"assignerShortName": "glibc",
"dateReserved": "2026-08-10T18:42:03.154Z",
"datePublished": "2026-09-14T17:11:12.243Z",
"dateUpdated": "2026-09-14T19:40:43.330Z"
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"dateUpdated": "2026-09-14T17:13:24.311Z"
},
"title": "Buffer overflow in strfmon and strfmon_l right-justification padding",
"datePublic": "2026-08-11T04:00:00.000Z",
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"descriptions": [
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"lang": "en",
"cweId": "CWE-122",
"description": "CWE-122 Heap-based buffer overflow",
"type": "CWE"
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"capecId": "CAPEC-135",
"descriptions": [
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"value": "CAPEC-135 Format String Injection"
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"capecId": "CAPEC-100",
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"value": "CAPEC-100 Overflow Buffers"
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"product": "glibc",
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"version": "2.38",
"lessThanOrEqual": "2.44",
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"value": "Calling strfmon and strfmon_l in the GNU C Library version 2.38 to 2.44 can write past the end of the caller-supplied output buffer when a conversion uses right-justified width padding.\n\nExploitation requires an application code path that calls strfmon or strfmon_l with right-justified width padding into a destination buffer that is large enough for the padding to succeed but too small for the internal memmove call. The field width or format may be attacker-influenced or a fixed susceptible pattern in the caller.\n\nAt the time of publication, no network-facing application impact is known.",
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"references": [
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"url": "https://sourceware.org/bugzilla/show_bug.cgi?id=34510",
"tags": [
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{
"url": "https://sourceware.org/git/?p=glibc.git;a=blob_plain;f=advisories/GLIBC-SA-2026-0017",
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"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"availabilityImpact": "HIGH",
"baseSeverity": "HIGH",
"baseScore": 7.7,
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:H"
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"credits": [
{
"lang": "en",
"value": "AISLE in partnership with Red Hat",
"type": "finder"
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"source": {
"discovery": "UNKNOWN"
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