260 lines
12 KiB
JSON
260 lines
12 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-9499",
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"assignerOrgId": "a59d8014-47c4-4630-ab43-e1b13cbe58e3",
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"state": "PUBLISHED",
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"assignerShortName": "TQtC",
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"dateReserved": "2026-05-25T09:55:56.600Z",
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"datePublished": "2026-07-21T13:25:27.477Z",
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"dateUpdated": "2026-07-22T18:28:22.217Z"
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},
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"shortName": "TQtC",
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"dateUpdated": "2026-07-21T13:25:27.477Z"
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},
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"title": "Out-of-bounds read in QTextCodec::codecForName() in Qt",
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"cweId": "CWE-125",
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"description": "CWE-125 Out-of-bounds Read",
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"type": "CWE"
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}
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]
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}
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],
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"impacts": [
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{
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"capecId": "CAPEC-540",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-540 Overread Buffers"
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}
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]
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}
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],
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"affected": [
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{
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"vendor": "Qt",
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"product": "Qt",
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"modules": [
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"Qt5Compat (Core5Compat)"
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"versions": [
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"status": "affected",
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"version": "6.0.0",
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"versionType": "python"
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"version": "6.9.0",
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"versionType": "python"
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}
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]
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"vendor": "Qt",
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"product": "Qt",
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"qtbase"
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{
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"version": "4.0.0",
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"versionType": "python"
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}
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"versionStartIncluding": "6.0.0",
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"versionEndExcluding": "6.8.8"
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "An out-of-bounds read (buffer over-read) vulnerability exists in QTextCodec::codecForName() in Qt. When the function is called with a QByteArray that is not NUL-terminated (for example, one created with QByteArray::fromRawData()), the codec-name matching routine reads past the end of the supplied buffer. In most cases this results in an incorrect text codec being selected; in the worst case, if the over-read reaches unmapped memory, the process crashes (denial of service). The over-read is bounded by the length of the longest codec-name candidate, and the out-of-bounds bytes are only compared internally against Qt's fixed list of codec names, so no data is disclosed to an attacker. Applications that do not pass non-NUL-terminated QByteArrays to QTextCodec::codecForName() are not exposed. The affected code resides in the Qt5Compat module from Qt 6.0.0 onward, and in Qt Core (qtbase) in Qt 4.x and Qt 5.x.",
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"value": "An out-of-bounds read (buffer over-read) vulnerability exists in <code>QTextCodec::codecForName()</code> in Qt. When the function is called with a <code>QByteArray</code> that is not NUL-terminated (for example, one created with <code>QByteArray::fromRawData()</code>), the codec-name matching routine reads past the end of the supplied buffer. In most cases this results in an incorrect text codec being selected; in the worst case, if the over-read reaches unmapped memory, the process crashes (denial of service). The over-read is bounded by the length of the longest codec-name candidate, and the out-of-bounds bytes are only compared internally against Qt's fixed list of codec names, so no data is disclosed to an attacker. Applications that do not pass non-NUL-terminated <code>QByteArray</code>s to <code>QTextCodec::codecForName()</code> are not exposed. The affected code resides in the Qt5Compat module from Qt 6.0.0 onward, and in Qt Core (qtbase) in Qt 4.x and Qt 5.x."
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}
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]
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}
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"references": [
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{
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"url": "https://codereview.qt-project.org/c/qt/qt5compat/+/723911",
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"name": "Fix (dev, released in Qt 6.12.0)",
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"tags": [
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"patch"
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]
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},
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{
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"url": "https://codereview.qt-project.org/c/qt/qt5compat/+/724348",
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"name": "Fix (6.11 branch, released in Qt 6.11.1)",
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"tags": [
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"patch"
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},
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{
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"url": "https://codereview.qt-project.org/c/qt/qt5compat/+/724995",
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"name": "Fix (6.10 branch)",
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"tags": [
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"patch"
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},
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{
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"url": "https://codereview.qt-project.org/c/qt/tqtc-qt5compat/+/725112",
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"name": "Fix (6.8 LTS branch, released in Qt 6.8.8)",
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"tags": [
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"patch"
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}
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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],
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"cvssV4_0": {
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "PRESENT",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "LOW",
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"subIntegrityImpact": "NONE",
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"vulnAvailabilityImpact": "LOW",
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"subAvailabilityImpact": "NONE",
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"exploitMaturity": "NOT_DEFINED",
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"Safety": "NOT_DEFINED",
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"Automatable": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"valueDensity": "NOT_DEFINED",
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"vulnerabilityResponseEffort": "NOT_DEFINED",
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"providerUrgency": "NOT_DEFINED",
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"version": "4.0",
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"baseSeverity": "MEDIUM",
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"baseScore": 6.3,
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N"
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}
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}
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],
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"solutions": [
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{
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"lang": "en",
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"value": "Update to Qt 6.8.8, Qt 6.11.1, Qt 6.12.0, or later, or apply the referenced patch.",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "<p>Update to Qt 6.8.8, Qt 6.11.1, Qt 6.12.0, or later, or apply the referenced patch.</p>"
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}
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]
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}
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],
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"source": {
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"discovery": "INTERNAL"
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},
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"x_generator": {
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"engine": "Vulnogram 1.0.4"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-07-22T18:13:28.519204Z",
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"id": "CVE-2026-9499",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-07-22T18:28:22.217Z"
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}
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} |