{"affected":[{"product":"Windows App Client for Windows Desktop","source":"CNA: microsoft","vendor":"Microsoft","versions":[{"lessThan":"2.0.1489.0","status":"affected","version":"1.00","versionType":"custom"}]}],"cveId":"CVE-2026-121678","cwes":["CWE-125"],"description":"Out-of-bounds read in Remote Desktop Client allows an unauthorized attacker to disclose information over a network.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":5.3,"severity":"medium","source":"CNA: microsoft","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","version":"3.1"},{"score":5.3,"severity":"medium","source":"NVD: secure@microsoft.com","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","version":"3.1"}],"modifiedAt":1794360729343,"publishedAt":1794335040816,"references":[{"source":"CNA: microsoft","tags":["vendor-advisory","patch"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-121678"},{"source":"secure@microsoft.com","tags":[],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-121678"}],"remediation":[{"kind":"fix","source":"CNA: microsoft","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-121678"}],"revision":"8093c8090b01d1f9f835648db52fdff500bace9d01b4bf09a14b92a92b370a0c","sources":[{"modifiedAt":1794360729343,"name":"CNA: microsoft","retrievedAt":1794362918418,"url":"https://www.cve.org/CVERecord?id=CVE-2026-121678"},{"modifiedAt":1794338431797,"name":"NVD","retrievedAt":1794356872233,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121678"}],"ssvc":{"assessedAt":1794360597403,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Windows Remote Desktop Client Information Disclosure Vulnerability","updatedAt":1794362918418}