CVE-2023-45935

View on CVE.org

Published Mar 27, 2024 CVSS 3.1 · 4.2 Medium EPSS < 1% KEV · Not listed

Description

Qt 6 through 6.6 was discovered to contain a NULL pointer dereference via the function QXcbConnection::initializeAllAtoms(). NOTE: this is disputed because it is not expected that an X application should continue to run when there is arbitrary anomalous behavior from the X server.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

No data.

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.240% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
http://packetstormsecurity.com/files/176815/qt-6.6-6.5-6.2-Null-Pointer.html
http://seclists.org/fulldisclosure/2024/Jan/61
https://bugreports.qt.io/browse/QTBUG-115599

History

Nov 4, 2025 7:30 PM Added references View changes

Type	Values Removed	Values Added
References		http://packetstormsecurity.com/files/176815/qt-6.6-6.5-6.2-Null-Pointer.html

Nov 15, 2024 10:15 PM Weaknesses updated. Scoring metrics updated View changes

Type	Values Removed	Values Added
Weaknesses		CWE-476
Metrics		cvssV3_1 `{'score': 4.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H'}`

Subscriptions

No data.

Weaknesses

CWE-476

Sources

CVE record Updated: Nov 4, 2025, 6:18 PM

Status: PUBLISHED
Assigner: mitre
Published: Mar 27, 2024, 12:00 AM
Updated: Nov 4, 2025, 6:18 PM
Reserved: Oct 16, 2023, 12:00 AM

View source JSON

Vulnrichment Updated: Nov 4, 2025, 6:18 PM

Updated: Nov 4, 2025, 6:18 PM

NVD Updated: Jun 17, 2026, 6:29 AM

Status: Deferred
Published: Mar 27, 2024, 5:15 AM
Modified: Jun 17, 2026, 6:29 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2023-45935", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2025-11-04T18:18:31.289Z", "dateReserved": "2023-10-16T00:00:00.000Z", "datePublished": "2024-03-27T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2024-03-27T04:41:23.809Z"}, "descriptions": [{"lang": "en", "value": "Qt 6 through 6.6 was discovered to contain a NULL pointer dereference via the function QXcbConnection::initializeAllAtoms(). NOTE: this is disputed because it is not expected that an X application should continue to run when there is arbitrary anomalous behavior from the X server."}], "tags": ["disputed"], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://bugreports.qt.io/browse/QTBUG-115599"}, {"name": "20240126 NULL pointer dereference in QT via the function QXcbConnection::initializeAllAtoms()", "tags": ["mailing-list"], "url": "http://seclists.org/fulldisclosure/2024/Jan/61"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-476", "lang": "en", "description": "CWE-476 NULL Pointer Dereference"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.2, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2024-07-30T15:37:25.325053Z", "id": "CVE-2023-45935", "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": "2024-11-15T21:43:45.516Z"}}, {"title": "CVE Program Container", "references": [{"url": "https://bugreports.qt.io/browse/QTBUG-115599", "tags": ["x_transferred"]}, {"name": "20240126 NULL pointer dereference in QT via the function QXcbConnection::initializeAllAtoms()", "tags": ["mailing-list", "x_transferred"], "url": "http://seclists.org/fulldisclosure/2024/Jan/61"}, {"url": "http://packetstormsecurity.com/files/176815/qt-6.6-6.5-6.2-Null-Pointer.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-04T18:18:31.289Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://bugreports.qt.io/browse/QTBUG-115599", "tags": ["x_transferred"]}, {"url": "http://seclists.org/fulldisclosure/2024/Jan/61", "name": "20240126 NULL pointer dereference in QT via the function QXcbConnection::initializeAllAtoms()", "tags": ["mailing-list", "x_transferred"]}, {"url": "http://packetstormsecurity.com/files/176815/qt-6.6-6.5-6.2-Null-Pointer.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-04T18:18:31.289Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.2, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2023-45935", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-07-30T15:37:25.325053Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-476", "description": "CWE-476 NULL Pointer Dereference"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-07-30T15:37:30.412Z"}}], "cna": {"tags": ["disputed"], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "references": [{"url": "https://bugreports.qt.io/browse/QTBUG-115599"}, {"url": "http://seclists.org/fulldisclosure/2024/Jan/61", "name": "20240126 NULL pointer dereference in QT via the function QXcbConnection::initializeAllAtoms()", "tags": ["mailing-list"]}], "descriptions": [{"lang": "en", "value": "Qt 6 through 6.6 was discovered to contain a NULL pointer dereference via the function QXcbConnection::initializeAllAtoms(). NOTE: this is disputed because it is not expected that an X application should continue to run when there is arbitrary anomalous behavior from the X server."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "text", "description": "n/a"}]}], "providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2024-03-27T04:41:23.809Z"}}}, "cveMetadata": {"cveId": "CVE-2023-45935", "state": "PUBLISHED", "dateUpdated": "2025-11-04T18:18:31.289Z", "dateReserved": "2023-10-16T00:00:00.000Z", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "datePublished": "2024-03-27T00:00:00.000Z", "assignerShortName": "mitre"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "cveTags": [{"sourceIdentifier": "cve@mitre.org", "tags": ["disputed"]}], "descriptions": [{"lang": "en", "value": "Qt 6 through 6.6 was discovered to contain a NULL pointer dereference via the function QXcbConnection::initializeAllAtoms(). NOTE: this is disputed because it is not expected that an X application should continue to run when there is arbitrary anomalous behavior from the X server."}, {"lang": "es", "value": "Se descubri\u00f3 que Qt 6 a 6.6 conten\u00eda una desreferencia de puntero NULL mediante la funci\u00f3n QXcbConnection::initializeAllAtoms(). NOTA: esto est\u00e1 en disputa porque no se espera que una aplicaci\u00f3n X contin\u00fae ejecut\u00e1ndose cuando hay un comportamiento an\u00f3malo arbitrario del servidor X."}], "id": "CVE-2023-45935", "lastModified": "2026-06-17T06:29:48.917", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 4.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 0.6, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-45935", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-07-30T15:37:25.325053Z", "version": "2.0.3"}}]}, "published": "2024-03-27T05:15:47.377", "references": [{"source": "cve@mitre.org", "url": "http://seclists.org/fulldisclosure/2024/Jan/61"}, {"source": "cve@mitre.org", "url": "https://bugreports.qt.io/browse/QTBUG-115599"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://packetstormsecurity.com/files/176815/qt-6.6-6.5-6.2-Null-Pointer.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://seclists.org/fulldisclosure/2024/Jan/61"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://bugreports.qt.io/browse/QTBUG-115599"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}