{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-63409", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-16T19:20:28.987Z", "datePublished": "2026-08-17T20:57:19.326Z", "dateUpdated": "2026-08-17T20:57:19.326Z"}, "containers": {"cna": {"title": "Deskflow: Odd-length DSOP options vector causes out-of-bounds read in Deskflow client", "problemTypes": [{"descriptions": [{"cweId": "CWE-125", "lang": "en", "description": "CWE-125: Out-of-bounds Read", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/deskflow/deskflow/security/advisories/GHSA-gmvh-3c73-m5gg", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/deskflow/deskflow/security/advisories/GHSA-gmvh-3c73-m5gg"}, {"name": "https://github.com/deskflow/deskflow/commit/8266fbbe6af93fa370018886c7f1f35d2cee8b3f", "tags": ["x_refsource_MISC"], "url": "https://github.com/deskflow/deskflow/commit/8266fbbe6af93fa370018886c7f1f35d2cee8b3f"}], "affected": [{"vendor": "deskflow", "product": "deskflow", "versions": [{"version": ">= 1.17.0, < 1.26.0.296", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-17T20:57:19.326Z"}, "descriptions": [{"lang": "en", "value": "Deskflow is a keyboard and mouse sharing app. From 1.17.0 until continuous build 1.26.0.296, a malicious Deskflow server can send an odd-length DSOP vector to ServerProxy::setOptions() in src/lib/client/ServerProxy.cpp, causing the missing value after the final option key to be read beyond the vector during the PacketStreamFilter::filterEvent to ServerProxy::handleData() to ServerProxy::parseHandshakeMessage() call chain and crash the connected client. This issue is fixed in continuous build 1.26.0.296."}], "source": {"advisory": "GHSA-gmvh-3c73-m5gg", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "deskflow", "vendor": "deskflow", "versions": [{"status": "affected", "version": ">= 1.17.0, < 1.26.0.296"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Deskflow is a keyboard and mouse sharing app. From 1.17.0 until continuous build 1.26.0.296, a malicious Deskflow server can send an odd-length DSOP vector to ServerProxy::setOptions() in src/lib/client/ServerProxy.cpp, causing the missing value after the final option key to be read beyond the vector during the PacketStreamFilter::filterEvent to ServerProxy::handleData() to ServerProxy::parseHandshakeMessage() call chain and crash the connected client. This issue is fixed in continuous build 1.26.0.296."}], "id": "CVE-2026-63409", "lastModified": "2026-08-17T21:16:46.200", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.2, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-08-17T21:16:46.200", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/deskflow/deskflow/commit/8266fbbe6af93fa370018886c7f1f35d2cee8b3f"}, {"source": "security-advisories@github.com", "url": "https://github.com/deskflow/deskflow/security/advisories/GHSA-gmvh-3c73-m5gg"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[1.17.0,1.26.0.296)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "deskflow", "source": "cna", "vendor": "deskflow"}, "product": "deskflow", "vendor": "deskflow"}], "created": "2026-08-17T23:15:04.210566+00:00", "updated": "2026-08-18T00:00:05.094920+00:00", "vendors": ["deskflow", "deskflow$PRODUCT$deskflow"]}