CVE-2026-63409

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{"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": "2026-09-09T21:11:46.833", "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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-63409", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-18T15:17:36.309685Z", "version": "2.0.3"}}]}, "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"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/deskflow/deskflow/security/advisories/GHSA-gmvh-3c73-m5gg"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"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"]}